eslint-plugin-no-use-extend-native


> ESLint plugin to prevent use of extended native objects

Install

First, install ESLint via
``
npm install --save-dev eslint
`

Then install eslint-plugin-no-use-extend-native
`
npm install --save-dev eslint-plugin-no-use-extend-native
`

Usage


In your eslint.config.js file add the plugin as such:

`javascript
import eslintPluginNoUseExtendNative from 'eslint-plugin-no-use-extend-native'

export default [
{
plugins: {
'no-use-extend-native': eslintPluginNoUseExtendNative,
},
rules: {
'no-use-extend-native/no-use-extend-native': 2,
},
},
]
`

If you want the default of the single rule being enabled as an error, you can also just use the following instead of
all of the above:

`javascript
import eslintPluginNoUseExtendNative from 'eslint-plugin-no-use-extend-native'

export default [
eslintPluginNoUseExtendNative.configs.recommended,
]
`

With this plugin enabled, ESLint will find issues with using extended native objects:
`javascript
import colors from 'colors';
console.log('unicorn'.green);
// => ESLint will give an error stating 'Avoid using extended native objects'

[].customFunction();
// => ESLint will give an error stating 'Avoid using extended native objects'
`

More examples can be seen in the tests.




Usage with no-extend-native

ESLint's [no-extend-native][no-extend-native] rule verifies code is not modifying a native prototype. e.g., with the no-extend-native rule enabled, the following lines are each considered incorrect:
`javascript
String.prototype.shortHash = function() { return this.substring(0, 7); };
Object.defineProperty(Array.prototype, "times", { value: 999 });
`

no-use-extend-native verifies code is not using a non-native prototype. e.g., with the no-use-extend-native plugin enabled, the following line is considered incorrect:
`javascript
"50bda47b09923e045759db8e8dd01a0bacd97370".shortHash() === "50bda47";
`

The no-use-extend-native plugin is designed to work with ESLint's no-extend-native rule. no-extend-native ensures that native prototypes aren't extended, and should a third party library extend them, no-use-extend-native` ensures those changes aren't depended upon.

[no-extend-native]: http://eslint.org/docs/rules/no-extend-native

LICENSE

MIT © Dustin Specker