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Javascript’s regular expression library is becoming world class, ... A back reference takes the form \N, where N is 1,2,3, etc. and corresponds to previous capture groups.

Check out this Gist if you're interested in learning more about Regex, aka Regular Expressions. It's not a complete guide, but I did cover the basics to help you get started. I've also included my ...

We present RexStepper, a reference debugger for troubleshooting JavaScript regular expressions in the browser. Rexstepper is implemented on top of Rexref, a trusted reference implementation of ...

The ECMAScript 2025 specification will likely be finalized in June, with finished proposals including JSON modules, new regex capabilities, and new Set methods published by year-end.