The key themes that defined the year behind us will also shape the one ahead. The most-read articles of 2025 tracked a return ...

This is a linear regular expression engine for a subset of JavaScript regexes. The underlying algorithm is an extension of the PikeVM, supporting more JavaScript features. This engine implements the ...

Abstract: Regular expressions are notoriously difficult to get right, with developers often having to resort to trial-and-error approaches. Even so, little attention ...

If you use Excel 40 hours a week (and those are the weeks you are on vacation), welcome to the MrExcel channel. Home to 2,400 free Excel tutorials. Bill "MrExcel" Jelen is the author of 67 books about ...

Functional programming, as the name implies, is about functions. While functions are part of just about every programming paradigm, including JavaScript, a functional programmer has unique ...

Escape the single-threaded event loop in browsers and on the server. Here's how to use worker threads and web workers for modern multithreading in JavaScript. The JavaScript language is one of the ...

regex is a template tag that extends JavaScript regular expressions with features that make them more powerful and dramatically more readable. It returns native RegExp instances that equal or exceed ...

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