---
url: /docs/guide/usage/linter/rules/react/exhaustive-deps.md
---

### What it does

Verifies the list of dependencies for Hooks like `useEffect` and similar.

### Why is this bad?

React Hooks like `useEffect` and similar require a list of dependencies to be passed as an argument. This list is used to determine when the effect should be re-run. If the list is missing or incomplete, the effect may run more often than necessary, or not at all.

### Examples

Examples of **incorrect** code for this rule:

```javascript
function MyComponent(props) {
  useEffect(() => {
    console.log(props.foo);
  }, []);
  // `props` is missing from the dependencies array
  return <div />;
}
```

Examples of **correct** code for this rule:

```javascript
function MyComponent(props) {
  useEffect(() => {
    console.log(props.foo);
  }, [props]);
  return <div />;
}
```

## Configuration

This rule accepts a configuration object with the following properties:

### additionalHooks

type: `string`

Optionally provide a regex of additional hooks to check.

## How to use

## Version

This rule was added in v0.12.0.

## References