| Yang Guo | 4fd355c | 2019-09-19 08:59:03 | [diff] [blame] | 1 | #is-regex <sup>[![Version Badge][2]][1]</sup> |
| 2 | |
| 3 | [![Build Status][3]][4] |
| 4 | [![dependency status][5]][6] |
| 5 | [![dev dependency status][7]][8] |
| 6 | [![License][license-image]][license-url] |
| 7 | [![Downloads][downloads-image]][downloads-url] |
| 8 | |
| 9 | [![npm badge][11]][1] |
| 10 | |
| 11 | [![browser support][9]][10] |
| 12 | |
| 13 | Is this value a JS regex? |
| 14 | This module works cross-realm/iframe, and despite ES6 @@toStringTag. |
| 15 | |
| 16 | ## Example |
| 17 | |
| 18 | ```js |
| 19 | var isRegex = require('is-regex'); |
| 20 | var assert = require('assert'); |
| 21 | |
| 22 | assert.notOk(isRegex(undefined)); |
| 23 | assert.notOk(isRegex(null)); |
| 24 | assert.notOk(isRegex(false)); |
| 25 | assert.notOk(isRegex(true)); |
| 26 | assert.notOk(isRegex(42)); |
| 27 | assert.notOk(isRegex('foo')); |
| 28 | assert.notOk(isRegex(function () {})); |
| 29 | assert.notOk(isRegex([])); |
| 30 | assert.notOk(isRegex({})); |
| 31 | |
| 32 | assert.ok(isRegex(/a/g)); |
| 33 | assert.ok(isRegex(new RegExp('a', 'g'))); |
| 34 | ``` |
| 35 | |
| 36 | ## Tests |
| 37 | Simply clone the repo, `npm install`, and run `npm test` |
| 38 | |
| 39 | [1]: https://npmjs.org/package/is-regex |
| 40 | [2]: http://versionbadg.es/ljharb/is-regex.svg |
| 41 | [3]: https://travis-ci.org/ljharb/is-regex.svg |
| 42 | [4]: https://travis-ci.org/ljharb/is-regex |
| 43 | [5]: https://david-dm.org/ljharb/is-regex.svg |
| 44 | [6]: https://david-dm.org/ljharb/is-regex |
| 45 | [7]: https://david-dm.org/ljharb/is-regex/dev-status.svg |
| 46 | [8]: https://david-dm.org/ljharb/is-regex#info=devDependencies |
| 47 | [9]: https://ci.testling.com/ljharb/is-regex.png |
| 48 | [10]: https://ci.testling.com/ljharb/is-regex |
| 49 | [11]: https://nodei.co/npm/is-regex.png?downloads=true&stars=true |
| 50 | [license-image]: http://img.shields.io/npm/l/is-regex.svg |
| 51 | [license-url]: LICENSE |
| 52 | [downloads-image]: http://img.shields.io/npm/dm/is-regex.svg |
| 53 | [downloads-url]: http://npm-stat.com/charts.html?package=is-regex |
| 54 | |
