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yannickcr/eslint-plugin-react

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lib/rules/jsx-key.js

Summary

Maintainability
D
2 days
Test Coverage

Function create has a Cognitive Complexity of 59 (exceeds 5 allowed). Consider refactoring.
Open

  create(context) {
    const options = Object.assign({}, defaultOptions, context.options[0]);
    const checkFragmentShorthand = options.checkFragmentShorthand;
    const checkKeyMustBeforeSpread = options.checkKeyMustBeforeSpread;
    const warnOnDuplicates = options.warnOnDuplicates;
Severity: Minor
Found in lib/rules/jsx-key.js - About 1 day 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

Function create has 187 lines of code (exceeds 25 allowed). Consider refactoring.
Open

  create(context) {
    const options = Object.assign({}, defaultOptions, context.options[0]);
    const checkFragmentShorthand = options.checkFragmentShorthand;
    const checkKeyMustBeforeSpread = options.checkKeyMustBeforeSpread;
    const warnOnDuplicates = options.warnOnDuplicates;
Severity: Major
Found in lib/rules/jsx-key.js - About 7 hrs to fix

    Function ArrayExpression, JSXElement > JSXElement has 42 lines of code (exceeds 25 allowed). Consider refactoring.
    Open

          'ArrayExpression, JSXElement > JSXElement'(node) {
        if (isWithinChildrenToArray) {
          return;
        }
    Severity: Minor
    Found in lib/rules/jsx-key.js - About 1 hr to fix

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