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