59 lines
1.7 KiB
Markdown
59 lines
1.7 KiB
Markdown
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# clone-regexp [](https://travis-ci.org/sindresorhus/clone-regexp)
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> Clone and modify a [RegExp](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp) instance
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## Install
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```
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$ npm install clone-regexp
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```
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## Usage
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```js
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const cloneRegexp = require('clone-regexp');
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const regex = /[a-z]/gi;
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cloneRegexp(regex);
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//=> /[a-z]/gi
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cloneRegexp(regex) === regex;
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//=> false
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cloneRegexp(regex, {global: false});
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//=> /[a-z]/i
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cloneRegexp(regex, {multiline: true});
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//=> /[a-z]/gim
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cloneRegexp(regex, {source: 'unicorn'});
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//=> /unicorn/gi
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```
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## API
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### cloneRegexp(regexp, [options])
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#### regex
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Type: `RegExp`
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Regex to clone.
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#### options
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Type: `Object`<br>
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Properties: [`source`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/source) [`global`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/global) [`ignoreCase`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/ignoreCase) [`multiline`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/multiline) [`dotAll`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/dotAll) [`sticky`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/sticky) [`unicode`](http://norbertlindenberg.com/2012/05/ecmascript-supplementary-characters/#RegExp) [`lastIndex`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/RegExp/lastIndex)
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Optionally modify the cloned `RegExp` instance.
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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