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node_modules/is-callable/README.md 1.93 KB
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  # is-callable <sup>[![Version Badge][2]][1]</sup>
  
  [![Build Status][3]][4]
  [![dependency status][5]][6]
  [![dev dependency status][7]][8]
  [![License][license-image]][license-url]
  [![Downloads][downloads-image]][downloads-url]
  
  [![npm badge][11]][1]
  
  [![browser support][9]][10]
  
  Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
  
  ## Example
  
  ```js
  var isCallable = require('is-callable');
  var assert = require('assert');
  
  assert.notOk(isCallable(undefined));
  assert.notOk(isCallable(null));
  assert.notOk(isCallable(false));
  assert.notOk(isCallable(true));
  assert.notOk(isCallable([]));
  assert.notOk(isCallable({}));
  assert.notOk(isCallable(/a/g));
  assert.notOk(isCallable(new RegExp('a', 'g')));
  assert.notOk(isCallable(new Date()));
  assert.notOk(isCallable(42));
  assert.notOk(isCallable(NaN));
  assert.notOk(isCallable(Infinity));
  assert.notOk(isCallable(new Number(42)));
  assert.notOk(isCallable('foo'));
  assert.notOk(isCallable(Object('foo')));
  
  assert.ok(isCallable(function () {}));
  assert.ok(isCallable(function* () {}));
  assert.ok(isCallable(x => x * x));
  ```
  
  ## Tests
  Simply clone the repo, `npm install`, and run `npm test`
  
  [1]: https://npmjs.org/package/is-callable
  [2]: http://versionbadg.es/ljharb/is-callable.svg
  [3]: https://travis-ci.org/ljharb/is-callable.svg
  [4]: https://travis-ci.org/ljharb/is-callable
  [5]: https://david-dm.org/ljharb/is-callable.svg
  [6]: https://david-dm.org/ljharb/is-callable
  [7]: https://david-dm.org/ljharb/is-callable/dev-status.svg
  [8]: https://david-dm.org/ljharb/is-callable#info=devDependencies
  [9]: https://ci.testling.com/ljharb/is-callable.png
  [10]: https://ci.testling.com/ljharb/is-callable
  [11]: https://nodei.co/npm/is-callable.png?downloads=true&stars=true
  [license-image]: http://img.shields.io/npm/l/is-callable.svg
  [license-url]: LICENSE
  [downloads-image]: http://img.shields.io/npm/dm/is-callable.svg
  [downloads-url]: http://npm-stat.com/charts.html?package=is-callable