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30-seconds-of-code/snippets/cloneRegExp.md
銀桑 d9c8306478 del: useless variable (#1198)
* del: useless variable

* fix: comment

Co-authored-by: 魏银鹏 <weiyinpeng@weiyinpengdeMacBook-Pro.local>
2020-09-02 13:02:42 +03:00

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title, tags
title tags
cloneRegExp type,string,regexp,intermediate

Clones a regular expression.

Use new RegExp(), RegExp.source and RegExp.flags to clone the given regular expression.

const cloneRegExp = regExp => new RegExp(regExp.source, regExp.flags);
const regExp = /lorem ipsum/gi;
const regExp2 = cloneRegExp(regExp); // regExp !== regExp2