Not surprisingly, Javascript, with its origins in web programming, has one of the most robust regular expression (or, more colloquially, regex) libraries in use today, and recent developments in ...

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A simple npm package that checks the password strength of a certain passphrase. A password strength checker based from Javascript RegEx. This repository contains regular expression (regex) patterns ...

It's been a while since I worked on regexs in JavaScript, but generally the way you do this in most programming languages is to build the regex as a string and then pass it into the regex engine.

Avoiding Catastrophic Backtracking JavaScript regex implementations in browsers use backtracking to evaluate strings against regular expressions, exploring all potential execution paths.