How to Use eslint-plugin-react-hooks v6 in React 19.2

Introduction

Using eslint-plugin-react-hooks version 6 in React 19.2 is a smart move for any developer. This plugin helps you ensure that your React hooks are used correctly. It checks your code to make sure you follow specific rules when using hooks, which can save you from future headaches.

Why Use eslint-plugin-react-hooks?

Here's the thing: hooks are a powerful feature in React, but they can also be tricky. If you don’t follow the rules set by React, your code may not work as expected. This plugin helps catch mistakes early. By using it, you will:

Write cleaner code
Prevent bugs related to hooks
Improve your understanding of React hooks

Installing the Plugin

To get started, you need to install the plugin. Open your terminal and run the following command:

npm install eslint-plugin-react-hooks --save-dev

This command adds the plugin to your project as a development dependency. It ensures that you can use it without affecting your production build.

Setting Up ESLint

After installing the plugin, the next step is to set it up in your ESLint configuration. If you don’t have an ESLint setup, you can create one by running:

npx eslint --init

This command will prompt you with a few questions. Follow the instructions to create a basic ESLint config file.

Configuring the Plugin

Now, you need to add eslint-plugin-react-hooks to your ESLint configuration file, which is usually named .eslintrc or .eslintrc.json. Open the file and add the following lines:

{
  "plugins": [
    "react-hooks"
  ],
  "rules": {
    "react-hooks/rules-of-hooks": "error",
    "react-hooks/exhaustive-deps": "warn"
  }
}

Here's what these rules do:

rules-of-hooks: This rule checks that you use hooks only at the top level of your component or in custom hooks.
exhaustive-deps: This rule checks the dependencies of your hooks, like useEffect, to make sure they are correct.

Using the Plugin

Once you have the plugin installed and configured, it’s time to start coding. When you write a component that uses hooks, ESLint will check your code and show warnings or errors if you break the rules. For example:

import React, { useState, useEffect } from 'react';

function MyComponent() {
  const [count, setCount] = useState(0);

  useEffect(() => {
    document.title = \`Count: \${count}\`;
  }, [count]); // Correct dependency

  return (
    
      You clicked {count} times
      
    
  );
}

This example sets up a simple counter. The useEffect hook updates the document title. ESLint will check the dependencies and remind you to include count in the dependency array.

Tips for Getting the Most Out of the Plugin

To make the plugin work for you, keep these tips in mind:

Run your linter often. The more you run it, the better you get at following the rules.
Pay attention to warnings. They are there to help you write better code.
Read the documentation. Understanding the rules can help you avoid mistakes.

Conclusion

Using eslint-plugin-react-hooks v6 in React 19.2 is a simple way to write better code. By following the steps above, you can set up the tool in your project and start catching mistakes early. This not only helps you avoid bugs but also makes you a better React developer. So, install the plugin, set it up in your ESLint config, and keep coding!