Linting & Formatting

9 pages in this section.

Learn linting and formatting basics for Expo SDK 57 projects. Explore 10 examples, including setup with npx expo lint and fixing violations.

Basics Linting Formatting Linting Eslint

Prettier & Import Sorting

Format your Expo app and monorepo packages consistently with Prettier and import sorting. Learn to configure and use these tools.

Linting Formatting Prettier Import Sorting Monorepo

TypeScript Strict Mode

Enable TypeScript strict mode in Expo projects, catch undefined route params and stale API shapes, and incrementally tighten type checks.

Linting Formatting Typescript Strict Mode Tsconfig

React Hooks Lint Rules

Verify eslint-plugin-react-hooks in Expo React Native apps. Catch illegal hook calls, stale closures, and missing cleanup before shipping.

Checklist Linting Formatting React Hooks

CI Quality Gates

Implement CI quality gates in GitHub Actions or EAS Workflows to run lint, typecheck, format, and test scripts on every pull request.

Linting Formatting CI Github Actions Eas Workflows

Custom ESLint Rules for RN

Checklist Linting Formatting Custom Eslint

Dead Code & Dependency Analysis

Linting Formatting Knip Depcheck Dead Code

Linting Best Practices

Learn 25 essential linting best practices from the Linting & Formatting section, covering ESLint, Prettier, TypeScript, and React Hooks.

Best Practices Summary Linting Formatting

Linting & Formatting Highlights Summary

A single-page roundup of every highlight bullet from the 8 pages in the Linting & Formatting section, grouped by source page so you can scan all 49 takeaways without opening each article individually.

Highlights Summary Linting Formatting

Linting & Formatting

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Linting & Formatting