https://github.com/dharfr/eslint-plugin-no-for-of-loops

An eslint plugin to prevent for..of loops usage in your code base.
https://github.com/dharfr/eslint-plugin-no-for-of-loops

eslint eslint-plugin loops

Last synced: 24 days ago
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An eslint plugin to prevent for..of loops usage in your code base.

• Host: GitHub
• URL: https://github.com/dharfr/eslint-plugin-no-for-of-loops
• Owner: dharFr
• License: mit
• Created: 2017-05-04T12:19:13.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2020-02-28T02:03:07.000Z (over 4 years ago)
• Last Synced: 2024-10-14T20:22:28.340Z (24 days ago)
• Topics: eslint, eslint-plugin, loops
• Language: JavaScript
• Homepage:
• Size: 20.5 KB
• Stars: 5
• Watchers: 2
• Forks: 0
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# eslint-plugin-no-for-of-loops

An [eslint](http://eslint.org/) plugin to prevent `for (...of)` loops usage in your code base.

[![Build Status](https://travis-ci.org/dharFr/eslint-plugin-no-for-of-loops.svg?branch=master)](https://travis-ci.org/dharFr/eslint-plugin-no-for-of-loops)

[![npm](https://img.shields.io/npm/v/eslint-plugin-no-for-of-loops.svg)](https://www.npmjs.com/package/eslint-plugin-no-for-of-loops)

[![Greenkeeper badge](https://badges.greenkeeper.io/dharFr/eslint-plugin-no-for-of-loops.svg)](https://greenkeeper.io/)

## Installation

``` sh

npm install --save-dev eslint-plugin-no-for-of-loops

```

## Usage

In your `.eslintrc`:

``` javascript

{

  "plugins": [

    "no-for-of-loops"

  ],

  "rules": {

    "no-for-of-loops/no-for-of-loops": 2

  }

}

```

## Rule

Disallow use of `for (..of)` loops.

## Why

Using  `for (...of)` loops requires `Symbol` and iterator polyfills to work on older browsers (see [babel/babel#1534](https://github.com/babel/babel/issues/1534)).

Depending on your browsers target (for example, Android 4.4 in-app Webview is capped to Chrome 33), you might not want to include those polyfills to save a few kilobytes.

See [for..of](http://kangax.github.io/compat-table/es6/#test-for..of_loops) and [Symbol](http://kangax.github.io/compat-table/es6/#test-Symbol) compatibily tables for more details.

## Disabling the rule

Want to disable the rule anyway? Your call :

```javascript

// eslint-disable-next-line no-for-of-loops/no-for-of-loops

for (let i of iterable) {

  // ...

}

```

## Credits

This project was initialy forked form [eslint-plugin-no-loops](https://github.com/buildo/eslint-plugin-no-loops). Kudos!