Regular expressions are archaic-looking, extremely specific, and amazingly helpful for finding the right data, files or whatever else you need. RegEx, a free online regular expression tester, lets you ...

Let’s say we need a JavaScript function that will take a string of tagged text (that is, it contains Extensible Markup Language (XML) markup) and return only the tags (and not the text that the tags ...

There are two types of people in the world: those who have no idea what a regular expression is, and those who not only know what they are but can compose them on the fly and tend to use them in ...