3 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).
10 npm i eslint-scope --save
16 var eslintScope = require('eslint-scope');
17 var espree = require('espree');
18 var estraverse = require('estraverse');
20 var ast = espree.parse(code);
21 var scopeManager = eslintScope.analyze(ast);
23 var currentScope = scopeManager.acquire(ast); // global scope
25 estraverse.traverse(ast, {
26 enter: function(node, parent) {
29 if (/Function/.test(node.type)) {
30 currentScope = scopeManager.acquire(node); // get current function scope
33 leave: function(node, parent) {
34 if (/Function/.test(node.type)) {
35 currentScope = currentScope.upper; // set to parent scope
45 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).
49 * `npm test` - run all linting and tests
50 * `npm run lint` - run all linting
54 ESLint Scope is licensed under a permissive BSD 2-clause license.