30-seconds-of-code/snippets/cloneRegExp.md

title, tags, firstSeen, lastUpdated

title	tags	firstSeen	lastUpdated
cloneRegExp	type,intermediate	2018-01-01T19:45:47+02:00	2020-10-22T20:23:47+03:00

Clones a regular expression.

• Use new RegExp(), 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