eslint-plugin-mutation

ESLint plugin to guard against unexpected mutations of objects in javascript

Usage no npm install needed!

<script type="module">
  import eslintPluginMutation from 'https://cdn.skypack.dev/eslint-plugin-mutation';
</script>

Checks for mutations of objects. Allows a whitelist of mutable objects.

npm i --save-dev eslint-plugin-mutation

Add the following to your .eslintrc

By default, "this" and "global" are allowed to be mutated.

  plugins: [
    "mutation"
  ],
  rules: {
    "mutation/no-mutation": 2
  }

This can be customized.

  plugins: [
    "mutation"
  ],
  rules: {
    "mutation/no-mutation": [2, {exceptions: ["this", "that", "global", "window"]}]
  }

Please submit a PR.