Function `sortChildren` has a Cognitive Complexity of 50 (exceeds 5 allowed). Consider refactoring.
Open

    export function sortChildren(parent: Element, sorter: (a: Element, b: Element) => number) {
        if (parent.childElementCount > 0) {

            // Note: move DOM elements with
            // minimal number of iterations

Found in src/utils/utils-dom.ts - About 7 hrs to fix

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Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Cognitive Complexity

Cognitive Complexity is a measure of how difficult a unit of code is to intuitively understand. Unlike Cyclomatic Complexity, which determines how difficult your code will be to test, Cognitive Complexity tells you how difficult your code will be to read and comprehend.

A method's cognitive complexity is based on a few simple rules:

Code is not considered more complex when it uses shorthand that the language provides for collapsing multiple statements into one
Code is considered more complex for each "break in the linear flow of the code"
Code is considered more complex when "flow breaking structures are nested"

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 103.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Duplicated Code

Duplicated code can lead to software that is hard to understand and difficult to change. The Don't Repeat Yourself (DRY) principle states:

Every piece of knowledge must have a single, unambiguous, authoritative representation within a system.

When you violate DRY, bugs and maintenance problems are sure to follow. Duplicated code has a tendency to both continue to replicate and also to diverge (leaving bugs as two similar implementations differ in subtle ways).

Tuning

This issue has a mass of 103.

We set useful threshold defaults for the languages we support but you may want to adjust these settings based on your project guidelines.

The threshold configuration represents the minimum mass a code block must have to be analyzed for duplication. The lower the threshold, the more fine-grained the comparison.

If the engine is too easily reporting duplication, try raising the threshold. If you suspect that the engine isn't catching enough duplication, try lowering the threshold. The best setting tends to differ from language to language.

See codeclimate-duplication's documentation for more information about tuning the mass threshold in your .codeclimate.yml.

Refactorings

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var pl = getStyleAsNum(el, 'padding-left');

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var pr = getStyleAsNum(el, 'padding-right');

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var size = {

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var avgLetterSize = (text.length !== 0) ? (size.width / text.length) : 0;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

                for (var i = 0, width = 0; i <= line.length - 1; i++) {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var child = container.firstElementChild;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'hasBottomScroll' is never reassigned; use 'const' instead of 'var'.
Open

        var hasBottomScroll = el.scrollWidth > el.clientWidth;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'bw' is never reassigned; use 'const' instead of 'var'.
Open

        var bw = borderWidthT + borderWidthL + borderWidthR + borderWidthB;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function selectOrAppend(container: Element, selector: string): Element;

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function selectAllImmediate(container: Element, selector: string) {
        var results = [];
        var matches = (
            Element.prototype.matches ||
            Element.prototype.msMatchesSelector ||

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

var scrollbarSizes: WeakMap<Node, {width: number; height: number;}> = new WeakMap();

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

                    var targetNode;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'scrollbars' is never reassigned; use 'const' instead of 'var'.
Open

        var scrollbars = getScrollbarSize(el);

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'paddingBottom' is never reassigned; use 'const' instead of 'var'.
Open

        var paddingBottom = isBottom && !hasBottomScroll ? `${scrollbars.height}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'textNode' is never reassigned; use 'const' instead of 'var'.
Open

        var textNode = div.querySelector('.x.axis .tick text');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

missing whitespace
Open

var scrollbarSizes: WeakMap<Node, {width: number; height: number;}> = new WeakMap();

Found in src/utils/utils-dom.ts by tslint

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Rule: whitespace

Enforces whitespace style conventions.

Rationale

Helps maintain a readable, consistent style in your codebase.

Notes

Has Fix

Config

Several arguments may be optionally provided:

"check-branch" checks branching statements (if/else/for/while) are followed by whitespace.
"check-decl"checks that variable declarations have whitespace around the equals token.
"check-operator" checks for whitespace around operator tokens.
"check-module" checks for whitespace in import & export statements.
"check-separator" checks for whitespace after separator tokens (,/;).
"check-rest-spread" checks that there is no whitespace after rest/spread operator (...).
"check-type" checks for whitespace before a variable type specification.
"check-typecast" checks for whitespace between a typecast and its target.
"check-type-operator" checks for whitespace between type operators | and &.
"check-preblock" checks for whitespace before the opening brace of a block.
"check-postbrace" checks for whitespace after an opening brace.

Examples

"whitespace": true,check-branch,check-operator,check-typecast

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "check-branch",
      "check-decl",
      "check-operator",
      "check-module",
      "check-separator",
      "check-rest-spread",
      "check-type",
      "check-typecast",
      "check-type-operator",
      "check-preblock",
      "check-postbrace"
    ]
  },
  "minLength": 0,
  "maxLength": 11
}

For more information see this page.

Shadowed name: 'g'
Open

                    .map((g, i) => {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Shadowed name: 'g'
Open

                return iterations.filter((g) => g.from !== g.to);

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var isRight = direction === 'vertical' || direction === 'both';

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var pb = getStyleAsNum(el, 'padding-bottom');

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var borderWidthB = getStyleAsNum(el, 'border-bottom-width');

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var maxWidthLine = lines

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var isElement = (_container instanceof Element);

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var container: d3Selection = isElement ? d3.select(_container as Element) : (_container as d3Selection);

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var classes = [];

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

statements are not aligned
Open

    export function getScrollbarSize(container: HTMLElement) {
        if (scrollbarSizes.has(container)) {
            return scrollbarSizes.get(container);
        }
        var initialOverflow = container.style.overflow;

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function getStyle(el: Element, prop: string) {
        return window.getComputedStyle(el).getPropertyValue(prop);
    }

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function getStyleAsNum(el: Element, prop: string) {
        return parseInt(getStyle(el, prop) || '0', 10);
    }

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function getAxisTickLabelSize(text: string) {
        var div = document.createElement('div');
        div.style.position = 'absolute';
        div.style.visibility = 'hidden';
        div.style.width = '100px';

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var lastFoundIndex = -1;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'isRight' is never reassigned; use 'const' instead of 'var'.
Open

        var isRight = direction === 'vertical' || direction === 'both';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'initialPaddingBottom' is never reassigned; use 'const' instead of 'var'.
Open

        var initialPaddingBottom = isBottom ? `${scrollbars.height}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'avgLetterSize' is never reassigned; use 'const' instead of 'var'.
Open

        var avgLetterSize = (text.length !== 0) ? (size.width / text.length) : 0;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'isElement' is never reassigned; use 'const' instead of 'var'.
Open

        var isElement = (_container instanceof Element);

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Shadowed name: 'classes'
Open

        var classes = [];

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

var tempDiv = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var size = {

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var lastFoundDelimiter = null;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var initialPaddingRight = isRight ? `${scrollbars.width}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'hasRightScroll' is never reassigned; use 'const' instead of 'var'.
Open

        var hasRightScroll = el.scrollHeight > el.clientHeight;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

                for (var i = 0, j, g, h; i < iterations.length; i++) {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'pl' is never reassigned; use 'const' instead of 'var'.
Open

        var pl = getStyleAsNum(el, 'padding-left');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'pb' is never reassigned; use 'const' instead of 'var'.
Open

        var pb = getStyleAsNum(el, 'padding-bottom');

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'borderWidthT' is never reassigned; use 'const' instead of 'var'.
Open

        var borderWidthT = getStyleAsNum(el, 'border-top-width');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'pt' is never reassigned; use 'const' instead of 'var'.
Open

        var pt = getStyleAsNum(el, 'padding-top');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function sortChildren(parent: Element, sorter: (a: Element, b: Element) => number) {
        if (parent.childElementCount > 0) {

            // Note: move DOM elements with
            // minimal number of iterations

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Identifier 'xFontSize' is never reassigned; use 'const' instead of 'var'.
Open

        var xFontSize = typeof (fontSize) === 'string' ? fontSize : (`${fontSize}px`);

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'results' is never reassigned; use 'const' instead of 'var'.
Open

        var results = [];

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    type d3Selection = d3.Selection<Element, any, Element, any>;

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var node: Node;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var div = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var delimitersActions = {

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var currGroup;

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'size' is never reassigned; use 'const' instead of 'var'.
Open

        var size = {

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'linesCount' is never reassigned; use 'const' instead of 'var'.
Open

        var linesCount = lines.length;

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'matches' is never reassigned; use 'const' instead of 'var'.
Open

        var matches = (

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var hasRightScroll = el.scrollHeight > el.clientHeight;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var paddingRight = isRight && !hasRightScroll ? `${scrollbars.width}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var currDiff;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'rect' is never reassigned; use 'const' instead of 'var'.
Open

            var rect = div.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'delimitersActions' is never reassigned; use 'const' instead of 'var'.
Open

        var delimitersActions = {

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function selectOrAppend(container: d3Selection, selector: string): d3Selection;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var initialOverflow = container.style.overflow;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var pt = getStyleAsNum(el, 'padding-top');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var borderWidthL = getStyleAsNum(el, 'border-left-width');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var rect = el.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var div = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var rect = div.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'size' is never reassigned; use 'const' instead of 'var'.
Open

        var size = {

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function classes(...args: (string | {[cls: string]: boolean})[]) {
        var classes = [];
        args.filter((c) => Boolean(c))
            .forEach((c) => {
                if (typeof c === 'string') {

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var borderWidthT = getStyleAsNum(el, 'border-top-width');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var bw = borderWidthT + borderWidthL + borderWidthR + borderWidthB;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var rect = textNode.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

Read up
Read up
Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var element;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 's' is never reassigned; use 'const' instead of 'var'.
Open

                    var s = getCharSize(line.charAt(i), {fontSize: xFontSize, fontFamily, fontWeight});

Found in src/utils/utils-dom.ts by tslint

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- Disable engine
- Disable check

Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'size' is never reassigned; use 'const' instead of 'var'.
Open

            var size = {

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'result' is never reassigned; use 'const' instead of 'var'.
Open

        var result = (d3El: d3Selection) => (isElement ? d3El.node() : d3El);

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'classes' is never reassigned; use 'const' instead of 'var'.
Open

        var classes = [];

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Shadowed name: 'i'
Open

                    .map((g, i) => {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var paddingBottom = isBottom && !hasBottomScroll ? `${scrollbars.height}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var textNode = div.querySelector('.x.axis .tick text');

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var xFontSize = typeof (fontSize) === 'string' ? fontSize : (`${fontSize}px`);

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'initialOverflow' is never reassigned; use 'const' instead of 'var'.
Open

        var initialOverflow = container.style.overflow;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'delimiters' is never reassigned; use 'const' instead of 'var'.
Open

        var delimiters = Object.keys(delimitersActions).join('');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function selectOrAppend(_container: Element | d3Selection, selector: string) {
        var delimitersActions = {
            '.': (text, el) => el.classed(text, true),
            '#': (text, el) => el.attr('id', text)
        };

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Shadowed name: 'iterations'
Open

                const iterations = groups

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var scrollbars = getScrollbarSize(el);

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var spaceBetweenLines = (fontSizeNumeric * 0.39) * linesCount;

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var result = (d3El: d3Selection) => (isElement ? d3El.node() : d3El);

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var child = container.selectAll(selector)

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

non-arrow functions are forbidden
Open

            .map(function (line) {

Found in src/utils/utils-dom.ts by tslint

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Rule: only-arrow-functions

Disallows traditional (non-arrow) function expressions.

Note that non-arrow functions are allowed if 'this' appears somewhere in its body (as such functions cannot be converted to arrow functions).

Rationale

Traditional functions don't bind lexical scope, which can lead to unexpected behavior when accessing 'this'.

Config

Two arguments may be optionally provided:

"allow-declarations" allows standalone function declarations.
"allow-named-functions" allows the expression function foo() {} but not function() {}.

Examples

"only-arrow-functions": true

"only-arrow-functions": true,allow-declarations,allow-named-functions

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "allow-declarations",
      "allow-named-functions"
    ]
  },
  "minLength": 0,
  "maxLength": 1
}

For more information see this page.

Identifier 'div' is never reassigned; use 'const' instead of 'var'.
Open

            var div = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function appendTo(el: string | Node, container: Element) {
        var node: Node;
        if (el instanceof Node) {
            node = el;
        } else {

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function getContainerSize(el: HTMLElement) {
        var pl = getStyleAsNum(el, 'padding-left');
        var pr = getStyleAsNum(el, 'padding-right');
        var pb = getStyleAsNum(el, 'padding-bottom');
        var pt = getStyleAsNum(el, 'padding-top');

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
- Disable check

Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Shadowed name: 'text'
Open

            '#': (text, el) => el.attr('id', text)

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

                    var s = getCharSize(line.charAt(i), {fontSize: xFontSize, fontFamily, fontWeight});

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var fontSizeNumeric = parseInt(xFontSize);

Found in src/utils/utils-dom.ts by tslint

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Exclude checks
- Disable engine
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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

            var size = {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var results = [];

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'rect' is never reassigned; use 'const' instead of 'var'.
Open

        var rect = textNode.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'fontSizeNumeric' is never reassigned; use 'const' instead of 'var'.
Open

        var fontSizeNumeric = parseInt(xFontSize);

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Shadowed name: 'text'
Open

            '.': (text, el) => el.classed(text, true),

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Identifier 'tempDiv' is never reassigned; use 'const' instead of 'var'.
Open

var tempDiv = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var delimiters = Object.keys(delimitersActions).join('');

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'scrollbarSizes' is never reassigned; use 'const' instead of 'var'.
Open

var scrollbarSizes: WeakMap<Node, {width: number; height: number;}> = new WeakMap();

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'paddingRight' is never reassigned; use 'const' instead of 'var'.
Open

        var paddingRight = isRight && !hasRightScroll ? `${scrollbars.width}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'pr' is never reassigned; use 'const' instead of 'var'.
Open

        var pr = getStyleAsNum(el, 'padding-right');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'rect' is never reassigned; use 'const' instead of 'var'.
Open

        var rect = el.getBoundingClientRect();

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'div' is never reassigned; use 'const' instead of 'var'.
Open

        var div = document.createElement('div');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'spaceBetweenLines' is never reassigned; use 'const' instead of 'var'.
Open

        var spaceBetweenLines = (fontSizeNumeric * 0.39) * linesCount;

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'container' is never reassigned; use 'const' instead of 'var'.
Open

        var container: d3Selection = isElement ? d3.select(_container as Element) : (_container as d3Selection);

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

statements are not aligned
Open

    export function setScrollPadding(el: HTMLElement, direction?: 'horizontal' | 'vertical' | 'both') {
        direction = direction || 'both';
        var isBottom = direction === 'horizontal' || direction === 'both';
        var isRight = direction === 'vertical' || direction === 'both';

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function getLabelSize(
        lines: string[],
        {fontSize, fontFamily, fontWeight}: {fontSize?: number, fontFamily?: string, fontWeight?: string}
    ) {
        var xFontSize = typeof (fontSize) === 'string' ? fontSize : (`${fontSize}px`);

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

statements are not aligned
Open

    export function selectImmediate(container: Element, selector: string) {
        return selectAllImmediate(container, selector)[0] || null;
    }

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Shadowed name: 'i'
Open

            .filter((d, i) => i === 0) as d3Selection;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-shadowed-variable

Disallows shadowing variable declarations.

Rationale

When a variable in a local scope and a variable in the containing scope have the same name, shadowing occurs. Shadowing makes it impossible to access the variable in the containing scope and obscures to what value an identifier actually refers. Compare the following snippets:

const a = 'no shadow';
function print() {
    console.log(a);
}
print(); // logs 'no shadow'.

const a = 'no shadow';
function print() {
    const a = 'shadow'; // TSLint will complain here.
    console.log(a);
}
print(); // logs 'shadow'.

ESLint has an equivalent rule. For more background information, refer to this MDN closure doc.

Config

You can optionally pass an object to disable checking for certain kinds of declarations. Possible keys are "class", "enum", "function", "import", "interface", "namespace", "typeAlias" and "typeParameter". You can also pass "underscore" to ignore variable names that begin with _. Just set the value to false for the check you want to disable. All checks default to true, i.e. are enabled by default. Note that you cannot disable variables and parameters.

The option "temporalDeadZone" defaults to true which shows errors when shadowing block scoped declarations in their temporal dead zone. When set to false parameters, classes, enums and variables declared with let or const are not considered shadowed if the shadowing occurs within their temporal dead zone.

The following example shows how the "temporalDeadZone" option changes the linting result:

function fn(value) {
    if (value) {
        const tmp = value; // no error on this line if "temporalDeadZone" is false
        return tmp;
    }
    let tmp = undefined;
    if (!value) {
        const tmp = value; // this line always contains an error
        return tmp;
    }
}

Examples

"no-shadowed-variable": true

"no-shadowed-variable": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "class": {
      "type": "boolean"
    },
    "enum": {
      "type": "boolean"
    },
    "function": {
      "type": "boolean"
    },
    "import": {
      "type": "boolean"
    },
    "interface": {
      "type": "boolean"
    },
    "namespace": {
      "type": "boolean"
    },
    "typeAlias": {
      "type": "boolean"
    },
    "typeParameter": {
      "type": "boolean"
    },
    "temporalDeadZone": {
      "type": "boolean"
    },
    "underscore": {
      "type": "boolean"
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var isBottom = direction === 'horizontal' || direction === 'both';

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var hasBottomScroll = el.scrollWidth > el.clientWidth;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var borderWidthR = getStyleAsNum(el, 'border-right-width');

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var linesCount = lines.length;

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'isBottom' is never reassigned; use 'const' instead of 'var'.
Open

        var isBottom = direction === 'horizontal' || direction === 'both';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        for (var i = 1, l = selector.length, text; i <= l; i++) {

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'initialPaddingRight' is never reassigned; use 'const' instead of 'var'.
Open

        var initialPaddingRight = isRight ? `${scrollbars.width}px` : '0';

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

        var matches = (

Found in src/utils/utils-dom.ts by tslint

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Rule: no-var-keyword

Disallows usage of the var keyword.

Use let or const instead.

Rationale

Declaring variables using var has several edge case behaviors that make var unsuitable for modern code. Variables declared by var have their parent function block as their scope, ignoring other control flow statements. vars have declaration "hoisting" (similar to functions) and can appear to be used before declaration.

Variables declared by const and let instead have as their scope the block in which they are defined, and are not allowed to used before declaration or be re-declared with another const or let.

Notes

Has Fix

Config

Not configurable.

Examples

"no-var-keyword": true

For more information see this page.

Identifier 'borderWidthL' is never reassigned; use 'const' instead of 'var'.
Open

        var borderWidthL = getStyleAsNum(el, 'border-left-width');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

non-arrow functions are forbidden
Open

            .sort(function (w1, w2) {

Found in src/utils/utils-dom.ts by tslint

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Rule: only-arrow-functions

Disallows traditional (non-arrow) function expressions.

Note that non-arrow functions are allowed if 'this' appears somewhere in its body (as such functions cannot be converted to arrow functions).

Rationale

Traditional functions don't bind lexical scope, which can lead to unexpected behavior when accessing 'this'.

Config

Two arguments may be optionally provided:

"allow-declarations" allows standalone function declarations.
"allow-named-functions" allows the expression function foo() {} but not function() {}.

Examples

"only-arrow-functions": true

"only-arrow-functions": true,allow-declarations,allow-named-functions

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "allow-declarations",
      "allow-named-functions"
    ]
  },
  "minLength": 0,
  "maxLength": 1
}

For more information see this page.

Identifier 'borderWidthR' is never reassigned; use 'const' instead of 'var'.
Open

        var borderWidthR = getStyleAsNum(el, 'border-right-width');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'borderWidthB' is never reassigned; use 'const' instead of 'var'.
Open

        var borderWidthB = getStyleAsNum(el, 'border-bottom-width');

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Identifier 'maxWidthLine' is never reassigned; use 'const' instead of 'var'.
Open

        var maxWidthLine = lines

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

Missing radix parameter
Open

        var fontSizeNumeric = parseInt(xFontSize);

Found in src/utils/utils-dom.ts by tslint

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Rule: radix

Requires the radix parameter to be specified when calling parseInt.

Rationale

From MDN:

Always specify this parameter to eliminate reader confusion and to guarantee predictable behavior. Different implementations produce different results when a radix is not specified, usually defaulting the value to 10.

Config

Not configurable.

Examples

"radix": true

For more information see this page.

Identifier 'child' is never reassigned; use 'const' instead of 'var'.
Open

        var child = container.selectAll(selector)

Found in src/utils/utils-dom.ts by tslint

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Rule: prefer-const

Requires that variable declarations use const instead of let and var if possible.

If a variable is only assigned to once when it is declared, it should be declared using 'const'

Notes

Has Fix

Config

An optional object containing the property "destructuring" with two possible values:

"any" (default) - If any variable in destructuring can be const, this rule warns for those variables.
"all" - Only warns if all variables in destructuring can be const.

Examples

"prefer-const": true

"prefer-const": true,[object Object]

Schema

{
  "type": "object",
  "properties": {
    "destructuring": {
      "type": "string",
      "enum": [
        "all",
        "any"
      ]
    }
  }
}

For more information see this page.

== should be ===
Open

            if (i == l || delimiters.indexOf(selector[i]) >= 0) {

Found in src/utils/utils-dom.ts by tslint

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Rule: triple-equals

Requires === and !== in place of == and !=.

Config

Two arguments may be optionally provided:

"allow-null-check" allows == and != when comparing to null.
"allow-undefined-check" allows == and != when comparing to undefined.

Examples

"triple-equals": true

"triple-equals": true,allow-null-check

"triple-equals": true,allow-undefined-check

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "allow-null-check",
      "allow-undefined-check"
    ]
  },
  "minLength": 0,
  "maxLength": 2
}

For more information see this page.

statements are not aligned
Open

    export const getCharSize = utils.memoize(
        (char: string, {fontSize, fontFamily, fontWeight}) => {

            var div = document.createElement('div');
            div.style.position = 'absolute';

Found in src/utils/utils-dom.ts by tslint

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Rule: align

Enforces vertical alignment.

Rationale

Helps maintain a readable, consistent style in your codebase.

Consistent alignment for code statements helps keep code readable and clear. Statements misaligned from the standard can be harder to read and understand.

Notes

Has Fix

Config

Five arguments may be optionally provided:

"parameters" checks alignment of function parameters.
"arguments" checks alignment of function call arguments.
"statements" checks alignment of statements.
"members" checks alignment of members of classes, interfaces, type literal, object literals and object destructuring.
"elements" checks alignment of elements of array literals, array destructuring and tuple types.

Examples

"align": true,parameters,statements

Schema

{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "arguments",
      "elements",
      "members",
      "parameters",
      "statements"
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

TargetProcess/tauCharts

Summary

Maintainability

Test Coverage

Function sortChildren has a Cognitive Complexity of 50 (exceeds 5 allowed). Consider refactoring. Open

Cognitive Complexity

A method's cognitive complexity is based on a few simple rules:

Further reading

File utils-dom.ts has 338 lines of code (exceeds 250 allowed). Consider refactoring. Open

Function sortChildren has 96 lines of code (exceeds 25 allowed). Consider refactoring. Open

Function selectOrAppend has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring. Open

Cognitive Complexity

A method's cognitive complexity is based on a few simple rules:

Further reading

Function selectOrAppend has 38 lines of code (exceeds 25 allowed). Consider refactoring. Open

Function createIterations has 32 lines of code (exceeds 25 allowed). Consider refactoring. Open

Function getAxisTickLabelSize has 28 lines of code (exceeds 25 allowed). Consider refactoring. Open

Function setScrollPadding has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring. Open

Cognitive Complexity

A method's cognitive complexity is based on a few simple rules:

Further reading

Avoid deeply nested control flow statements. Open

Avoid deeply nested control flow statements. Open

Similar blocks of code found in 2 locations. Consider refactoring. Open

Duplicated Code

Tuning

Refactorings

Further Reading

Similar blocks of code found in 2 locations. Consider refactoring. Open

Duplicated Code

Tuning

Refactorings

Further Reading

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Forbidden 'var' keyword, use 'let' or 'const' instead Open

Rule: no-var-keyword

Rationale

Notes

Config

Examples

Identifier 'hasBottomScroll' is never reassigned; use 'const' instead of 'var'. Open

Rule: prefer-const

Notes

Config

Examples

Function `sortChildren` has a Cognitive Complexity of 50 (exceeds 5 allowed). Consider refactoring.
Open

File `utils-dom.ts` has 338 lines of code (exceeds 250 allowed). Consider refactoring.
Open

Function `sortChildren` has 96 lines of code (exceeds 25 allowed). Consider refactoring.
Open

Function `selectOrAppend` has a Cognitive Complexity of 13 (exceeds 5 allowed). Consider refactoring.
Open

Function `selectOrAppend` has 38 lines of code (exceeds 25 allowed). Consider refactoring.
Open

Function `createIterations` has 32 lines of code (exceeds 25 allowed). Consider refactoring.
Open

Function `getAxisTickLabelSize` has 28 lines of code (exceeds 25 allowed). Consider refactoring.
Open

Function `setScrollPadding` has a Cognitive Complexity of 9 (exceeds 5 allowed). Consider refactoring.
Open

Avoid deeply nested control flow statements.
Open

Avoid deeply nested control flow statements.
Open

Similar blocks of code found in 2 locations. Consider refactoring.
Open

Similar blocks of code found in 2 locations. Consider refactoring.
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Identifier 'hasBottomScroll' is never reassigned; use 'const' instead of 'var'.
Open

Identifier 'bw' is never reassigned; use 'const' instead of 'var'.
Open

statements are not aligned
Open

statements are not aligned
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Forbidden 'var' keyword, use 'let' or 'const' instead
Open

Identifier 'scrollbars' is never reassigned; use 'const' instead of 'var'.
Open

Identifier 'paddingBottom' is never reassigned; use 'const' instead of 'var'.
Open

Identifier 'textNode' is never reassigned; use 'const' instead of 'var'.
Open

missing whitespace
Open

Shadowed name: 'g'
Open

Shadowed name: 'g'
Open