dappros/ethora

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comment must start with a space
Open

    //argument url can be a chatlink or simple link

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

" should be '
Open

                    name="edit"

Rule: quotemark

Enforces quote character for string literals.

Notes
  • Has Fix

Config

Five arguments may be optionally provided:

  • "single" enforces single quotes.
  • "double" enforces double quotes.
  • "backtick" enforces backticks.
  • "jsx-single" enforces single quotes for JSX attributes.
  • "jsx-double" enforces double quotes for JSX attributes.
  • "avoid-template" forbids single-line untagged template strings that do not contain string interpolations. Note that backticks may still be used if "avoid-escape" is enabled and both single and double quotes are present in the string (the latter option takes precedence).
  • "avoid-escape" allows you to use the "other" quotemark in cases where escaping would normally be required. For example, [true, "double", "avoid-escape"] would not report a failure on the string literal 'Hello "World"'.
Examples
"quotemark": true,single,avoid-escape,avoid-template
"quotemark": true,single,jsx-double
Schema
{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "single",
      "double",
      "backtick",
      "jsx-single",
      "jsx-double",
      "avoid-escape",
      "avoid-template"
    ]
  },
  "minLength": 0,
  "maxLength": 5
}

For more information see this page.

" should be '
Open

      <SecondaryHeader title="Transactions" />

Rule: quotemark

Enforces quote character for string literals.

Notes
  • Has Fix

Config

Five arguments may be optionally provided:

  • "single" enforces single quotes.
  • "double" enforces double quotes.
  • "backtick" enforces backticks.
  • "jsx-single" enforces single quotes for JSX attributes.
  • "jsx-double" enforces double quotes for JSX attributes.
  • "avoid-template" forbids single-line untagged template strings that do not contain string interpolations. Note that backticks may still be used if "avoid-escape" is enabled and both single and double quotes are present in the string (the latter option takes precedence).
  • "avoid-escape" allows you to use the "other" quotemark in cases where escaping would normally be required. For example, [true, "double", "avoid-escape"] would not report a failure on the string literal 'Hello "World"'.
Examples
"quotemark": true,single,avoid-escape,avoid-template
"quotemark": true,single,jsx-double
Schema
{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "single",
      "double",
      "backtick",
      "jsx-single",
      "jsx-double",
      "avoid-escape",
      "avoid-template"
    ]
  },
  "minLength": 0,
  "maxLength": 5
}

For more information see this page.

An empty interface is equivalent to {}.
Open

interface MintScreenProps {}

Rule: no-empty-interface

Forbids empty interfaces.

Rationale

An empty interface is equivalent to its supertype (or {}).

Notes
  • TypeScript Only

Config

Not configurable.

For more information see this page.

comment must start with a space
Open

//images for tutorial screens
Severity: Minor
Found in client-reactnative/docs/config.ts by tslint

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

" should be '
Open

import { sendBrowserNotification } from "./utils";
Severity: Minor
Found in client-web/src/xmppHandler.ts by tslint

Rule: quotemark

Enforces quote character for string literals.

Notes
  • Has Fix

Config

Five arguments may be optionally provided:

  • "single" enforces single quotes.
  • "double" enforces double quotes.
  • "backtick" enforces backticks.
  • "jsx-single" enforces single quotes for JSX attributes.
  • "jsx-double" enforces double quotes for JSX attributes.
  • "avoid-template" forbids single-line untagged template strings that do not contain string interpolations. Note that backticks may still be used if "avoid-escape" is enabled and both single and double quotes are present in the string (the latter option takes precedence).
  • "avoid-escape" allows you to use the "other" quotemark in cases where escaping would normally be required. For example, [true, "double", "avoid-escape"] would not report a failure on the string literal 'Hello "World"'.
Examples
"quotemark": true,single,avoid-escape,avoid-template
"quotemark": true,single,jsx-double
Schema
{
  "type": "array",
  "items": {
    "type": "string",
    "enum": [
      "single",
      "double",
      "backtick",
      "jsx-single",
      "jsx-double",
      "avoid-escape",
      "avoid-template"
    ]
  },
  "minLength": 0,
  "maxLength": 5
}

For more information see this page.

Identifier 'xmppPassword' is never reassigned; use 'const' instead of 'let'.
Open

      xmppPassword,

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 'isProfileOpen' is never reassigned; use 'const' instead of 'let'.
Open

      isProfileOpen,

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.

comment must start with a space
Open

  //clear pagination data

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Expected property shorthand in object literal ('{total}').
Open

          total: total,

Rule: object-literal-shorthand

Enforces/disallows use of ES6 object literal shorthand.

Notes
  • Has Fix

Config

"always" assumed to be default option, thus with no options provided the rule enforces object literal methods and properties shorthands. With "never" option provided, any shorthand object literal syntax causes an error.

The rule can be configured in a more granular way. With {"property": "never"} provided (which is equivalent to {"property": "never", "method": "always"}), the rule only flags property shorthand assignments, and respectively with {"method": "never"} (equivalent to {"property": "always", "method": "never"}), the rule fails only on method shorthands.

Examples
"object-literal-shorthand": true
"object-literal-shorthand": true,never
"object-literal-shorthand": true,[object Object]
Schema
{
  "oneOf": [
    {
      "type": "string",
      "enum": [
        "never"
      ]
    },
    {
      "type": "object",
      "properties": {
        "property": {
          "type": "string",
          "enum": [
            "never"
          ]
        },
        "method": {
          "type": "string",
          "enum": [
            "never"
          ]
        }
      },
      "minProperties": 1,
      "maxProperties": 2
    }
  ]
}

For more information see this page.

comment must start with a space
Open

    //when the app opens for the first time, when clicked url from outside, this will be called

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

comment must start with a space
Open

//interfaces and types

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

comment must start with a space
Open

  //mobx stores

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Expected property shorthand in object literal ('{transaction}').
Open

          transaction: transaction,

Rule: object-literal-shorthand

Enforces/disallows use of ES6 object literal shorthand.

Notes
  • Has Fix

Config

"always" assumed to be default option, thus with no options provided the rule enforces object literal methods and properties shorthands. With "never" option provided, any shorthand object literal syntax causes an error.

The rule can be configured in a more granular way. With {"property": "never"} provided (which is equivalent to {"property": "never", "method": "always"}), the rule only flags property shorthand assignments, and respectively with {"method": "never"} (equivalent to {"property": "always", "method": "never"}), the rule fails only on method shorthands.

Examples
"object-literal-shorthand": true
"object-literal-shorthand": true,never
"object-literal-shorthand": true,[object Object]
Schema
{
  "oneOf": [
    {
      "type": "string",
      "enum": [
        "never"
      ]
    },
    {
      "type": "object",
      "properties": {
        "property": {
          "type": "string",
          "enum": [
            "never"
          ]
        },
        "method": {
          "type": "string",
          "enum": [
            "never"
          ]
        }
      },
      "minProperties": 1,
      "maxProperties": 2
    }
  ]
}

For more information see this page.

comment must start with a space
Open

  //local states

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

comment must start with a space
Open

    //@ts-ignore

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

comment must start with a space
Open

    //this will get the other user's Avatar and description

Rule: comment-format

Enforces formatting rules for single-line comments.

Rationale

Helps maintain a consistent, readable style in your codebase.

Notes
  • Has Fix

Config

Four arguments may be optionally provided:

  • "check-space" requires that all single-line comments must begin with a space, as in // comment
    • note that for comments starting with multiple slashes, e.g. ///, leading slashes are ignored
    • TypeScript reference comments are ignored completely
  • "check-lowercase" requires that the first non-whitespace character of a comment must be lowercase, if applicable.
  • "check-uppercase" requires that the first non-whitespace character of a comment must be uppercase, if applicable.
  • "allow-trailing-lowercase" allows that only the first comment of a series of comments needs to be uppercase.
    • requires "check-uppercase"
    • comments must start at the same position

Exceptions to "check-lowercase" or "check-uppercase" can be managed with object that may be passed as last argument.

One of two options can be provided in this object:

  • "ignore-words" - array of strings - words that will be ignored at the beginning of the comment.
  • "ignore-pattern" - string - RegExp pattern that will be ignored at the beginning of the comment.
Examples
"comment-format": true,check-space,check-uppercase,allow-trailing-lowercase
"comment-format": true,check-lowercase,[object Object]
"comment-format": true,check-lowercase,[object Object]
Schema
{
  "type": "array",
  "items": {
    "anyOf": [
      {
        "type": "string",
        "enum": [
          "check-space",
          "check-lowercase",
          "check-uppercase",
          "allow-trailing-lowercase"
        ]
      },
      {
        "type": "object",
        "properties": {
          "ignore-words": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "ignore-pattern": {
            "type": "string"
          }
        },
        "minProperties": 1,
        "maxProperties": 1
      }
    ]
  },
  "minLength": 1,
  "maxLength": 5
}

For more information see this page.

Shadowed name: 'firstName'
Open

    const firstName = name.split(' ')[0];

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 'data' is never reassigned; use 'const' instead of 'let'.
Open

    let data = new FormData();

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

  const room:roomListProps = chatStore.roomList.find(item => item.jid === chatJid)||{

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.

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