ESLint is a tool for identifying and reporting on patterns found in ECMAScript/JavaScript code.
In many ways, it is similar to JSLint and JSHint with a few exceptions:
- ESLint uses Espree for JavaScript parsing.
- ESLint uses an AST to evaluate patterns in code.
- ESLint is completely pluggable, every single rule is a plugin and you can add more at runtime.
It doesn’t matter if you’re writing JavaScript in the browser or on the server, with or without a framework, ESLint can help your code live its best life.
This is free and open source software.
Key Features
- Find issues – statically analyzes your code to quickly find problems. ESLint is built into most text editors and you can run ESLint as part of your continuous integration pipeline.
- Fix problems automatically – many problems ESLint finds can be automatically fixed. ESLint fixes are syntax-aware so you won’t experience errors introduced by traditional find-and-replace algorithms.
- Configure – preprocess code, use custom parsers, and write your own rules that work alongside ESLint’s built-in rules. Customize ESLint to work exactly the way you need it for your project.
Website: github.com/eslint/eslint
Support:
Developer: OpenJS Foundation and other contributors
License: MIT License
ESLint is written in JavaScript. Learn JavaScript with our recommended free books and free tutorials.
Related Software
| JavaScript Linter Tools | |
|---|---|
| ESLint | Find and fix problems in JavaScript code |
| Biome | Toolchain for web projects |
| standard | JavaScript style guide, linter, and formatter |
| Flow | Static type checker |
| OXCc | Tools for JavaScript and TypeScript |
| XO | Configurable ESLint wrapper |
| JSHint | Static code analysis tool |
| Sherif | Checks monorepo dependency consistency |
| RSLint | Easy to use JavaScript and TypeScript linter |
| JSLint | JavaScript code quality and coverage tool |
| neostandard | Successor to the standardjs javascript style guide |
| deno_lint | Rust crate for building fast JavaScript and TypeScript linters |
| quick-lint-js | Finds bugs in JavaScript programs |
| Putout | JavaScript linter, pluggable and configurable code transformer |
Read our verdict in the software roundup.
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