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Quick Guide: ESLint, Prettier, TypeScript

DEV Community •
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Setting up code linting and formatting for a new TypeScript project can be a frustrating experience, especially with outdated tutorials and confusing official documentation. A developer on DEV Community shared a streamlined approach to configure ESLint, Prettier, and TypeScript in minutes. Their guide cuts through the noise, clarifying a common point of confusion around ESLint's configuration files and how to properly integrate these essential tools without unnecessary complexity.

The author's breakthrough came from understanding that the 'plugins' section isn't always required in `eslint.config.js` when using 'extends'. Starting with `bunx create-vite`, the process involves adding core packages like eslint, typescript-eslint, and prettier. For VS Code users, installing the official dbaeumer.vscode-eslint and esbenp.prettier-vscode extensions is crucial for a smooth workflow and real-time feedback.

Automating the process is the final, critical step. The guide details using Husky and lint-staged to create a pre-commit hook that automatically runs Prettier on all staged files. This ensures consistent code style across the entire project before any commit is finalized. By following these specific commands and using the provided `package.json` and `eslint.config.js` templates, developers can avoid common setup pitfalls and start coding immediately.