| name | JavaScript Tooling |
|---|---|
| description | Development tools, linting, and testing for JavaScript projects. |
| metadata | {"labels": ["tooling", "javascript", "eslint", "prettier", "testing"], "triggers": {"files": [".eslintrc.*", "jest.config.*", "package.json"], "keywords": ["eslint", "prettier", "jest", "test", "lint", "build"]}} |
JavaScript Tooling
Priority: P1 (OPERATIONAL)
Essential tooling for JavaScript development.
Implementation Guidelines
- Linting: ESLint (Rec + Prettier). Fix on save.
- Formatting: Prettier. Run on save/commit.
- Testing: Jest/Vitest. Co-locate tests. >80% cov.
- Build: Vite (Apps), Rollup (Libs).
- Pkg Manager: Sync versions (
npm/yarn/pnpm).
Anti-Patterns
- No Formatting Wars: Prettier rules.
- No Untested Code: TDD/Post-code tests.
- No Dirty Commits: Lint before push.
Configuration
// .eslintrc.js
module.exports = {
extends: ['eslint:recommended', 'prettier'],
rules: { 'no-console': 'warn', 'prefer-const': 'error' },
};
// .prettierrc
{ "semi": true, "singleQuote": true, "printWidth": 80 }
// jest.config.js
export default {
coverageThreshold: { global: { lines: 80 } },
};
Reference & Examples
For testing patterns and CI/CD: See references/REFERENCE.md.
Related Topics
best-practices | language