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lib/store/src/parameters.ts

Summary

Maintainability
A
1 hr
Test Coverage

Function combineParameters has 26 lines of code (exceeds 25 allowed). Consider refactoring.
Open

export const combineParameters = (...parameterSets: (Parameters | undefined)[]) => {
  const mergeKeys: Record<string, boolean> = {};
  const combined = parameterSets.filter(Boolean).reduce((acc, p) => {
    Object.entries(p).forEach(([key, value]) => {
      const existing = acc[key];
Severity: Minor
Found in lib/store/src/parameters.ts - About 1 hr to fix

    Function combineParameters has a Cognitive Complexity of 7 (exceeds 5 allowed). Consider refactoring.
    Open

    export const combineParameters = (...parameterSets: (Parameters | undefined)[]) => {
  const mergeKeys: Record<string, boolean> = {};
  const combined = parameterSets.filter(Boolean).reduce((acc, p) => {
    Object.entries(p).forEach(([key, value]) => {
      const existing = acc[key];
    Severity: Minor
    Found in lib/store/src/parameters.ts - About 35 mins to fix

    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"

    Further reading

    Type assertion on object literals is forbidden, use a type annotation instead.
    Open

      }, {} as Parameters);
    Severity: Minor
    Found in lib/store/src/parameters.ts by tslint

    Rule: no-object-literal-type-assertion

    Forbids an object literal to appear in a type assertion expression. Casting to any or to unknown is still allowed.

    Rationale

    Always prefer const x: T = { ... }; to const x = { ... } as T;. The type assertion in the latter case is either unnecessary or hides an error. The compiler will warn for excess properties with this syntax, but not missing required fields. For example: const x: { foo: number } = {} will fail to compile, but const x = {} as { foo: number } will succeed. Additionally, the const assertion const x = { foo: 1 } as const, introduced in TypeScript 3.4, is considered beneficial and is ignored by this rule.

    Notes
    • TypeScript Only

    Config

    One option may be configured:

    • allow-arguments allows type assertions to be used on object literals inside call expressions.
    Examples
    "no-object-literal-type-assertion": true
    "no-object-literal-type-assertion": true,[object Object]
    Schema
    {
  "type": "object",
  "properties": {
    "allow-arguments": {
      "type": "boolean"
    }
  },
  "additionalProperties": false
}

    For more information see this page.

    Use a conditional expression instead of assigning to 'combined[key]' in multiple places.
    Open

        if (mergeValues.every((value) => isPlainObject(value))) {
    Severity: Minor
    Found in lib/store/src/parameters.ts by tslint

    Rule: prefer-conditional-expression

    Recommends to use a conditional expression instead of assigning to the same thing in each branch of an if statement.

    Rationale

    This reduces duplication and can eliminate an unnecessary variable declaration.

    Config

    If check-else-if is specified, the rule also checks nested if-else-if statements.

    Examples
    "prefer-conditional-expression": true
    "prefer-conditional-expression": true,check-else-if
    Schema
    {
  "type": "string",
  "enum": [
    "check-else-if"
  ]
}

    For more information see this page.

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