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						- [](https://www.npmjs.com/package/eslint-scope)
 - [](https://www.npmjs.com/package/eslint-scope)
 - [](https://github.com/eslint/eslint-scope/actions)
 - 
 - # ESLint Scope
 - 
 - ESLint Scope is the [ECMAScript](http://www.ecma-international.org/publications/standards/Ecma-262.htm) scope analyzer used in ESLint. It is a fork of [escope](http://github.com/estools/escope).
 - 
 - ## Install
 - 
 - ```
 - npm i eslint-scope --save
 - ```
 - 
 - ## 📖 Usage
 - 
 - To use in an ESM file:
 - 
 - ```js
 - import * as eslintScope from 'eslint-scope';
 - ```
 - 
 - To use in a CommonJS file:
 - 
 - ```js
 - const eslintScope = require('eslint-scope');
 - ```
 - 
 - Example:
 - 
 - ```js
 - import * as eslintScope from 'eslint-scope';
 - import * as espree from 'espree';
 - import estraverse from 'estraverse';
 - 
 - const ast = espree.parse(code, { range: true });
 - const scopeManager = eslintScope.analyze(ast);
 - 
 - const currentScope = scopeManager.acquire(ast);   // global scope
 - 
 - estraverse.traverse(ast, {
 -     enter (node, parent) {
 -         // do stuff
 - 
 -         if (/Function/.test(node.type)) {
 -             currentScope = scopeManager.acquire(node);  // get current function scope
 -         }
 -     },
 -     leave(node, parent) {
 -         if (/Function/.test(node.type)) {
 -             currentScope = currentScope.upper;  // set to parent scope
 -         }
 - 
 -         // do stuff
 -     }
 - });
 - ```
 - 
 - ## Contributing
 - 
 - Issues and pull requests will be triaged and responded to as quickly as possible. We operate under the [ESLint Contributor Guidelines](http://eslint.org/docs/developer-guide/contributing), so please be sure to read them before contributing. If you're not sure where to dig in, check out the [issues](https://github.com/eslint/eslint-scope/issues).
 - 
 - ## Build Commands
 - 
 - * `npm test` - run all linting and tests
 - * `npm run lint` - run all linting
 - 
 - ## License
 - 
 - ESLint Scope is licensed under a permissive BSD 2-clause license.
 
 
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