ESLint React

A series of composable ESLint rules for React and friends.

Table of Contents

• Features
• Public Packages
  • Modular
  • Unified
• Installation
  • Install
  • Setup
• Presets
  • Bare Bones
  • General Purpose
  • TypeScript Specialized
  • Other
• Rules
• FAQ
• Roadmap
• Contributing
• License

Features

• Modern: First-class support for TypeScript, React 19, and more.
• Flexible: Fully customizable rule severity levels, allowing you to enforce or relax rules as needed.
• Performant: Built with performance in mind, optimized for large codebases.
• Context-aware Linting: Rules that understand the context of your code and project configuration to provide more accurate linting.

Public Packages

Modular

• eslint-plugin-react-x - X Rules (renderer-agnostic, compatible with x-platform).
• eslint-plugin-react-dom - DOM specific rules for React DOM.
• eslint-plugin-react-web-api - Rules for interacting with Web APIs.
• eslint-plugin-react-naming-convention - Naming convention rules.

Unified

• @eslint-react/eslint-plugin - A unified plugin that combines all individual plugins into one.

Installation

Note

ESLint React requires the following minimum versions:

• Node.js: 20.19.0
• ESLint: 9.24.0
• TypeScript: 4.9.5

Install

npm install --save-dev typescript-eslint @eslint-react/eslint-plugin

Setup

// eslint.config.js

// @ts-check
import eslintJs from "@eslint/js";
import eslintReact from "@eslint-react/eslint-plugin";
import tseslint from "typescript-eslint";

export default tseslint.config({
  files: ["**/*.ts", "**/*.tsx"],

  // Extend recommended rule sets from:
  // 1. ESLint JS's recommended rules
  // 2. TypeScript ESLint recommended rules
  // 3. ESLint React's recommended-typescript rules
  extends: [
    eslintJs.configs.recommended,
    tseslint.configs.recommended,
    eslintReact.configs["recommended-typescript"],
  ],

  // Configure language/parsing options
  languageOptions: {
    // Use TypeScript ESLint parser for TypeScript files
    parser: tseslint.parser,
    parserOptions: {
      // Enable project service for better TypeScript integration
      projectService: true,
      tsconfigRootDir: import.meta.dirname,
    },
  },

  // Custom rule overrides (modify rule levels or disable rules)
  rules: {
    "@eslint-react/no-missing-key": "warn",
  },
});

Full Installation Guide ↗

Presets

Bare Bones

• x
  Enable rules for "react".
• dom
  Enable rules for "react-dom".
• web-api
  Enable rules for interacting with Web APIs.

General Purpose

• recommended
  Enforce rules that are recommended by ESLint React for general purpose React + React DOM projects.
  This preset includes the x, dom, and web-api presets.

TypeScript Specialized

• recommended-typescript
  Same as the recommended preset but disables rules that can be enforced by TypeScript.

• recommended-type-checked
  Same as the recommended-typescript preset but enables additional rules that require type information.

Other

• disable-dom
  Disable rules in the dom preset.
• disable-web-api
  Disable rules in the web-api preset.
• disable-type-checked
  Disable rules that require type information.
• off
  Disable all rules in this plugin except for debug rules.

Full Presets List ↗

Rules

Rules Overview ↗

FAQ

Frequently Asked Questions ↗

Roadmap

• Milestone 2.0 ↗

Contributing

Contributions are welcome!

Please follow our contributing guidelines.

License

This project is licensed under the MIT License - see the LICENSE file for details.