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12 essential ESLint rules for React

Blog post from LogRocket

Post Details
Company
Date Published
Author
Joe Attardi
Word Count
2,950
Language
-
Hacker News Points
-
Summary

The article provides an extensive overview of using ESLint with React, emphasizing the importance of configuring ESLint to enhance code quality in React applications. It discusses the integration of ESLint plugins, particularly eslint-plugin-react and eslint-plugin-react-hooks, which enforce best practices for React and its Hooks. The text further explains specific rules such as react-hooks/rules-of-hooks, which mandates consistent Hook usage, and react-hooks/exhaustive-deps, which manages dependency arrays to prevent bugs. It also covers various React-specific rules like ensuring explicit button types, defining PropTypes, and avoiding pitfalls like using array indices as keys in lists. The article underscores the significance of proper JSX handling and React import practices, especially since React 17's new JSX transform. Additionally, it highlights the benefit of using the eslint-plugin-jsx-a11y for accessibility checks and concludes by suggesting developers can extend ESLint functionalities through custom rules and plugins to suit their project's unique needs.