# StandardJS — JavaScript Style Guide with Built-In Linter and Auto-Fixer

> An opinionated JavaScript style guide, linter, and formatter that requires zero configuration. Catch errors and enforce consistent style across your entire codebase automatically.

## Install

Save as a script file and run:

# StandardJS — JavaScript Style Guide with Built-In Linter and Auto-Fixer

## Quick Use
```bash
npx standard
# or install globally
npm install -g standard
standard --fix
```

## Introduction
StandardJS is a JavaScript style guide, linter, and formatter rolled into one tool with zero configuration required. It enforces a consistent coding style across projects by combining a curated set of ESLint rules into a single opinionated package, eliminating debates about code formatting.

## What StandardJS Does
- Lints JavaScript and TypeScript files against a fixed rule set with no `.eslintrc` needed
- Auto-fixes formatting issues in place with the `--fix` flag
- Integrates with editors like VS Code, Vim, and Sublime for real-time feedback
- Supports JSX and Flow syntax out of the box
- Provides a sharable ESLint config (`eslint-config-standard`) for custom setups

## Architecture Overview
StandardJS is built on top of ESLint and bundles a carefully curated set of rules from `eslint-config-standard`. When you run `standard`, it invokes ESLint internally with a locked configuration, so there are no config files to manage. The `--fix` flag delegates to ESLint's auto-fix engine to rewrite code in place.

## Self-Hosting & Configuration
- Install via npm: `npm install standard --save-dev`
- Add a lint script to `package.json`: `"scripts": {"lint": "standard"}`
- Use `standard --fix` in CI pipelines for automatic formatting
- Ignore specific files with a `standard.ignore` field in `package.json`
- Override globals with `standard.globals` in `package.json` when needed

## Key Features
- Zero configuration required to get started
- Catches common bugs like unused variables and accidental globals
- Automatic code formatting with `--fix`
- Supports modern ES2024+ syntax, JSX, and TypeScript via plugins
- Used by companies including npm, GitHub, and Brave

## Comparison with Similar Tools
- **ESLint** — More flexible but requires configuration; StandardJS wraps ESLint with fixed rules
- **Prettier** — Focuses only on formatting, not linting; StandardJS does both
- **Biome** — Rust-based all-in-one tool; StandardJS is JS-native and ESLint-compatible
- **XO** — Similar opinionated linter by Sindre Sorhus; StandardJS has a larger community

## FAQ
**Q: Can I override specific rules?**
A: StandardJS is intentionally opinionated and does not support per-rule overrides. If you need customization, use `eslint-config-standard` directly with ESLint.

**Q: Does StandardJS work with TypeScript?**
A: Yes. Use `ts-standard` or configure `eslint-config-standard-with-typescript` for full TypeScript support.

**Q: Does it support semicolons?**
A: StandardJS enforces no-semicolon style by default. If you prefer semicolons, use `semistandard` instead.

**Q: How does it compare in performance to ESLint?**
A: Performance is equivalent since StandardJS runs ESLint under the hood. The difference is in configuration: StandardJS needs none.

## Sources
- [GitHub Repository](https://github.com/standard/standard)
- [Official Documentation](https://standardjs.com)

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Source: https://tokrepo.com/en/workflows/asset-393c9f26
Author: Script Depot