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schangxiang@126.com

2025-09-19 18966e02fb573c7e2bb0c6426ed792b38b910940

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# eslint-utils
 
[![npm version](https://img.shields.io/npm/v/eslint-utils.svg)](https://www.npmjs.com/package/eslint-utils)
[![Downloads/month](https://img.shields.io/npm/dm/eslint-utils.svg)](http://www.npmtrends.com/eslint-utils)
[![Build Status](https://travis-ci.org/mysticatea/eslint-utils.svg?branch=master)](https://travis-ci.org/mysticatea/eslint-utils)
[![Coverage Status](https://codecov.io/gh/mysticatea/eslint-utils/branch/master/graph/badge.svg)](https://codecov.io/gh/mysticatea/eslint-utils)
[![Dependency Status](https://david-dm.org/mysticatea/eslint-utils.svg)](https://david-dm.org/mysticatea/eslint-utils)
 
## 🏁 Goal
 
This package provides utility functions and classes for make ESLint custom rules.
 
For examples:
 
- [getStaticValue](https://mysticatea.github.io/eslint-utils/api/ast-utils.html#getstaticvalue) evaluates static value on AST.
- [PatternMatcher](https://mysticatea.github.io/eslint-utils/api/ast-utils.html#patternmatcher-class) finds a regular expression pattern as handling escape sequences.
- [ReferenceTracker](https://mysticatea.github.io/eslint-utils/api/scope-utils.html#referencetracker-class) checks the members of modules/globals as handling assignments and destructuring.
 
## 📖 Usage
 
See [documentation](https://mysticatea.github.io/eslint-utils/).
 
## 📰 Changelog
 
See [releases](https://github.com/mysticatea/eslint-utils/releases).
 
## ❤️ Contributing
 
Welcome contributing!
 
Please use GitHub's Issues/PRs.
 
### Development Tools
 
- `npm test` runs tests and measures coverage.
- `npm run clean` removes the coverage result of `npm test` command.
- `npm run coverage` shows the coverage result of the last `npm test` command.
- `npm run lint` runs ESLint.
- `npm run watch` runs tests on each file change.