While working on PR #1159, I found myself constantly refining how I checked for the CSS <number> value and often having to replace the same pattern in multiple places of the larger regex pattern for ...

This repository contains code that makes it easy to test regular expressions that shoud match all valid BEM class-names. In the BEM.regex file, only lines that start with a caret ^ are used. The ...

In this lesson, you’ll learn how to use RegEx (regular expressions) to work with sets of characters. Unlike the ., which matches any single character , sets enable you to match specific characters and ...

Have you ever struggled to find specific information within a lengthy webpage? Perhaps you're researching a topic and need to locate paragraphs that contain multiple keywords. If you've ever found ...