udiudi / eslint-plugin-better-mutation

Eslint rules to enforce function-scope mutation only

eslint-plugin-better-mutation

ESLint rules for better mutation rules

Install

$ npm install --save-dev eslint eslint-plugin-better-mutation

Usage

Configure it in .eslintrc.

{
  "name": "my-awesome-project",
  "eslintConfig": {
    "env": {
      "es6": true
    },
    "plugins": [
      "better-mutation"
    ],
    "rules": {
      "better-mutation/no-mutating-functions": "error",
      "better-mutation/no-mutating-methods": "error",
      "better-mutation/no-mutation": "error",
    }
  }
}

Rules

• no-mutating-functions - Forbid the use of Object.assign() and lodash mutation methods with a non-local variable as first argument.
• no-mutating-methods - Forbid the use of mutating methods on non-local variables.
• no-mutation - Forbid the use of mutating operators on non-local variables.

Recommended configuration

This plugin exports a recommended configuration that enforces good practices.

To enable this configuration, use the extends property in your .eslintrc.

{
  "name": "my-awesome-project",
  "eslintConfig": {
    "plugins": [
      "better-mutation"
    ],
    "extends": "plugin:better-mutation/recommended"
  }
}

See ESLint documentation for more information about extending configuration files.

MIT © Andres Olave

Thanks to Jeroen Engels. Checkout https://github.com/jfmengels/eslint-plugin-fp for a real functional programming eslint