mirror of https://github.com/thangisme/notes.git
31 lines
675 B
Markdown
31 lines
675 B
Markdown
# is-supported-regexp-flag [](https://travis-ci.org/sindresorhus/is-supported-regexp-flag)
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> Check whether a RegExp flag is supported. Mostly useful for `y` and `u`.
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## Install
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```sh
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$ npm install --save is-supported-regexp-flag
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```
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## Usage
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```js
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var isSupportedRegexpFlag = require('is-supported-regexp-flag');
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isSupportedRegexpFlag('g'); // as in /foo/g
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//=> true
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isSupportedRegexpFlag('u');
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//=> false
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```
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RegExp throws if you're trying to use unsupported flags. This is a nicer way to check for support.
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## License
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MIT © [Sindre Sorhus](http://sindresorhus.com)
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