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# `eslint-plugin-react-hooks`
This ESLint plugin enforces the [Rules of Hooks](https://react.dev/reference/rules/rules-of-hooks).
It is a part of the [Hooks API](https://react.dev/reference/react/hooks) for React.
## Installation
**Note: If you're using Create React App, please use `react-scripts` >= 3 instead of adding it directly.**
Assuming you already have ESLint installed, run:
```sh
# npm
npm install eslint-plugin-react-hooks --save-dev
# yarn
yarn add eslint-plugin-react-hooks --dev
```
### Legacy Config (.eslintrc)
If you are still using ESLint below 9.0.0, please continue to use `recommended-legacy`. To avoid breaking changes, we still support `recommended` as well, but note that this will be changed to alias the flat recommended config in v6.
```js
{
"extends": [
// ...
"plugin:react-hooks/recommended-legacy"
]
}
```
### Flat Config (eslint.config.js)
For [ESLint 9.0.0 and above](https://eslint.org/blog/2024/04/eslint-v9.0.0-released/) users, add the `recommended-latest` config.
```js
import reactHooks from 'eslint-plugin-react-hooks';
export default [
// ...
reactHooks.configs['recommended-latest'],
];
```
### Custom Configuration
If you want more fine-grained configuration, you can instead add a snippet like this to your ESLint configuration file:
#### Legacy Config (.eslintrc)
```js
{
"plugins": [
// ...
"react-hooks"
],
"rules": {
// ...
"react-hooks/rules-of-hooks": "error",
"react-hooks/exhaustive-deps": "warn"
}
}
```
#### Flat Config (eslint.config.js)
```js
import reactHooks from 'eslint-plugin-react-hooks';
export default [
{
files: ['**/*.{js,jsx}'],
plugins: { 'react-hooks': reactHooks },
// ...
rules: {
'react-hooks/rules-of-hooks': 'error',
'react-hooks/exhaustive-deps': 'warn',
}
},
];
```
## Advanced Configuration
`exhaustive-deps` can be configured to validate dependencies of custom Hooks with the `additionalHooks` option.
This option accepts a regex to match the names of custom Hooks that have dependencies.
```js
{
"rules": {
// ...
"react-hooks/exhaustive-deps": ["warn", {
"additionalHooks": "(useMyCustomHook|useMyOtherCustomHook)"
}]
}
}
```
We suggest to use this option **very sparingly, if at all**. Generally saying, we recommend most custom Hooks to not use the dependencies argument, and instead provide a higher-level API that is more focused around a specific use case.
## Valid and Invalid Examples
Please refer to the [Rules of Hooks](https://react.dev/reference/rules/rules-of-hooks) documentation to learn more about this rule.
## License
MIT
Mini Shell