steve02081504/eslint-plugin-remove-duplicates

eslint-plugin-remove-duplicates

This ESLint plugin removes duplicate elements in arrays by comparing their source code text. Arrays must be specially marked with a // @remove-duplicates comment.

Installation

You'll first need to install ESLint:

npm i eslint --save-dev
# or
yarn add eslint --dev

Next, install eslint-plugin-remove-duplicates:

npm install eslint-plugin-remove-duplicates --save-dev
# or
yarn add eslint-plugin-remove-duplicates --dev

Usage

Add remove-duplicates to the plugins section of your .eslintrc.js configuration file. You can omit the eslint-plugin- prefix:

module.exports = {
  plugins: [
    'remove-duplicates'
  ]
};

Then, in any JavaScript file, you can use the // @remove-duplicates comment to mark an array for duplicate removal:

// @remove-duplicates
const myArray = ['a', 'b', 'a', 'c', 'b', 'a'];

// After running ESLint with this plugin, myArray will be:
// const myArray = ['a', 'b', 'c'];

Example

Here's an example of how the plugin works:

Before:

// @remove-duplicates
const myList = ["apple", "banana", "apple", "orange", "banana", "grape"];

After running ESLint:

// @remove-duplicates
const myList = ["apple", "banana", "orange", "grape"];