Clone RegExp

JavaScript, Type · Oct 22, 2020

Clones a regular expression.

Use the RegExp constructor, RegExp.prototype.source and RegExp.prototype.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

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