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is-supported-regexp-flag

is-supported-regexp-flag Build Status

Check whether a RegExp flag is supported. Mostly useful for y and u.

Install

$ npm install --save is-supported-regexp-flag

Usage

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