Skip to main content

ADR-0049: Prettier for Code Formatting

Status​

Accepted - 2025-01-26

Context​

Team needs consistent code formatting to avoid style debates and formatting commits.

Decision​

Prettier 3.x for automatic code formatting.

Rationale​

  1. Opinionated: Zero config, no debates
  2. Auto-Format: IDE integration, pre-commit hooks
  3. Multi-Language: TypeScript, JSON, Markdown, YAML
  4. Industry Standard: Used by React, Next.js, Tailwind

Configuration​

// .prettierrc
{
  "semi": true,
  "singleQuote": true,
  "tabWidth": 2,
  "trailingComma": "es5",
  "printWidth": 100,
  "arrowParens": "always"
}

Pre-Commit Hook​

# .husky/pre-commit
pnpm prettier --write --list-different .

CI/CD Integration​

# Check formatting (no changes)
pnpm prettier --check .

References​