Prettier

Prettier ended the "Style Wars". It accepts your code and reprints it with its own rules. v3.x runs as ESM and supports plugins.

When to Use

• Always: Every project should have a formatter.
• Collaborating: Eliminates "nitpick" comments in PRs about whitespace.

Core Concepts

Opinionated

Few options. Print width, tab width, semi, quotes. That's it.

Editor Integration

"Format on Save".

Plugins

prettier-plugin-tailwindcss sorts classes automatically.

Best Practices (2025)

Do:

• Run in CI: Ensure code is formatted before merge (prettier --check .).
• Ignore generated files: Add .prettierignore.

Don't:

• Don't argue about style: Just run Prettier.

References

• Prettier Documentation