Working with regular expressions I’m also going to cover how to work with regular expressions in JavaScript, though the concepts learned here apply to other languages as well.

JavaScript’s RegExp object, which holds a regular expression, is what we need here. Regular expressions are a big subject, and there are plenty of FAQs on them on the Web.

That’s what [Low Level JavaScript] points out about regular expressions. Sure, a lot of people think they are scary. So why not write your own regular expression parser and engine?

If you’ve programmed in Perl or any other language with built-in regular-expression capabilities, then you probably know how much easier regular expressions make text processing and pattern ...

I'm trying to write a regular expression for a javascript function. I basically want to test the entire string to make sure the string only has alpha numberic characters and certain latin ...

Regular expressions — the things you feed to programs like grep — are a bit like riding a bike. It seems impossible until you learn to do it, and then it’s easy.