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54 lines
2.4 KiB
Text
54 lines
2.4 KiB
Text
RegExp.prototype.flags <sup>[![Version Badge][npm-version-svg]][package-url]</sup>
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[![Build Status][travis-svg]][travis-url]
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[![dependency status][deps-svg]][deps-url]
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[![dev dependency status][dev-deps-svg]][dev-deps-url]
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[![License][license-image]][license-url]
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[![Downloads][downloads-image]][downloads-url]
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[![npm badge][npm-badge-png]][package-url]
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[![browser support][testling-svg]][testling-url]
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An ES6 spec-compliant `RegExp.prototype.flags` shim. Invoke its "shim" method to shim RegExp.prototype.flags if it is unavailable.
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*Note*: `RegExp#flags` requires a true ES5 environment - specifically, one with ES5 getters.
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This package implements the [es-shim API](https://github.com/es-shims/api) interface. It works in an ES5-supported environment and complies with the [spec](http://www.ecma-international.org/ecma-262/6.0/#sec-get-regexp.prototype.flags).
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Most common usage:
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```js
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var flags = require('regexp.prototype.flags');
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assert(flags(/a/) === '');
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assert(flags(new RegExp('a') === '');
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assert(flags(/a/mig) === 'gim');
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assert(flags(new RegExp('a', 'mig')) === 'gim');
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if (!RegExp.prototype.flags) {
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flags.shim();
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}
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assert(flags(/a/) === /a/.flags);
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assert(flags(new RegExp('a') === new RegExp('a').flags);
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assert(flags(/a/mig) === /a/mig.flags);
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assert(flags(new RegExp('a', 'mig')) === new RegExp('a', 'mig').flags);
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```
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## Tests
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Simply clone the repo, `npm install`, and run `npm test`
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[package-url]: https://npmjs.com/package/regexp.prototype.flags
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[npm-version-svg]: http://versionbadg.es/es-shims/RegExp.prototype.flags.svg
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[travis-svg]: https://travis-ci.org/es-shims/RegExp.prototype.flags.svg
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[travis-url]: https://travis-ci.org/es-shims/RegExp.prototype.flags
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[deps-svg]: https://david-dm.org/es-shims/RegExp.prototype.flags.svg
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[deps-url]: https://david-dm.org/es-shims/RegExp.prototype.flags
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[dev-deps-svg]: https://david-dm.org/es-shims/RegExp.prototype.flags/dev-status.svg
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[dev-deps-url]: https://david-dm.org/es-shims/RegExp.prototype.flags#info=devDependencies
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[testling-svg]: https://ci.testling.com/es-shims/RegExp.prototype.flags.png
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[testling-url]: https://ci.testling.com/es-shims/RegExp.prototype.flags
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[npm-badge-png]: https://nodei.co/npm/regexp.prototype.flags.png?downloads=true&stars=true
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[license-image]: http://img.shields.io/npm/l/regexp.prototype.flags.svg
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[license-url]: LICENSE
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[downloads-image]: http://img.shields.io/npm/dm/regexp.prototype.flags.svg
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[downloads-url]: http://npm-stat.com/charts.html?package=regexp.prototype.flags
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