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eslint-plugin-react-func

v0.1.18

Published

max lines per function for react

Downloads

22,680

Readme

eslint-plugin-react-func

React function rules for ESLint

Installation

You'll first need to install ESLint:

$ npm i eslint --save-dev

Next, install eslint-plugin-react-func:

$ npm install eslint-plugin-react-func --save-dev

or

$ yarn add eslint-plugin-react-func -D

Usage

Add react-func to the plugins section of your .eslintrc configuration file. You can omit the eslint-plugin- prefix:

{
    "plugins": [
        "react-func"
    ]
}

Then configure the rules you want to use under the rules section.

{
    "rules": {
        "react-func/max-lines-per-function": ["warn", 20],
        "react-func/max-combined-conditions": ["error", 1]
    }
}

Supported Rules

 

max-lines-per-function

This rule will ignore any functions that contains JSX elements, custom hooks are also ignored.

Options

  • "max" (default 50) enforces a maximum number of lines in a function.
  • "skipBlankLines" (default false) ignore lines made up purely of whitespace.
  • "skipComments" (default false) ignore lines containing just comments.
  • "IIFEs" (default false) include any code included in IIFEs.
{
    "rules": {
        "react-func/max-lines-per-function": [
            "warn",
            {
                "max": 20,
                "skipBlankLines": true,
                "skipComments": true,
                "IIFEs": true
            }
        ],
    }
}

Bad

    /*eslint react-func/max-lines-per-function: ["error", 2]*/
    function foo() {
        var foo = 0;
        var bar = 0;
        var baz = 0;
    }

Good

    /*eslint react-func/max-lines-per-function: ["error", 2]*/
    function foo() {
        var foo = 0;
        var bar = 0;
    }

max-combined-conditions

Options

This rule has a numeric option (defaulted to 1)

{
    "rules": {
        "react-func/max-combined-conditions": ["error", 1],
    }
}

Bad

    /*eslint react-func/max-combined-conditions: ["error", 0]*/
    if (a < b && b > c) {
        a = c
    }

Good

    /*eslint react-func/max-combined-conditions: ["error", 0]*/
    const isBGreaterThanOthers = a < b && b > c

     if (isBGreaterThanOthers) {
        a = c
    }