# Prettier
Confidence: high
Last verified: 2026-05-22
Generation: human_only


## TL;DR

Prettier is an opinionated code formatter supporting JavaScript, TypeScript, CSS, HTML, JSON, Markdown, YAML, and more. It enforces consistent formatting by parsing code and re-printing it with its own rules. Minimizes bike-shedding in code reviews.

## Core Explanation

Key philosophy: limited configurability (by design) — fewer options = less debate. `.prettierrc` controls the few options available: `tabWidth`, `semi`, `singleQuote`, `trailingComma`, `printWidth`. `.prettierignore` excludes files. Integrates with ESLint (eslint-config-prettier), editors (format-on-save), and pre-commit hooks (lint-staged + husky).

## Further Reading

- [Prettier Documentation](https://prettier.io/docs/)