d9c8306478
* del: useless variable * fix: comment Co-authored-by: 魏银鹏 <weiyinpeng@weiyinpengdeMacBook-Pro.local>
18 lines
374 B
Markdown
18 lines
374 B
Markdown
---
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title: cloneRegExp
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tags: type,string,regexp,intermediate
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---
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Clones a regular expression.
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Use `new RegExp()`, `RegExp.source` and `RegExp.flags` to clone the given regular expression.
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```js
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const cloneRegExp = regExp => new RegExp(regExp.source, regExp.flags);
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```
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```js
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const regExp = /lorem ipsum/gi;
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const regExp2 = cloneRegExp(regExp); // regExp !== regExp2
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```
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