As a developer you have probably already worked with Regular Expressions. If you’re like me and didn’t need them too often, you probably googled them up more than you wrote them yourself.

So today I’d like to go through the basics of Regex and show you how to build regular expressions and how to write them yourself.

If you haven’t had anything to do with this topic before, this post is still for you, of course. Regular Expressions are a way to check strings against a certain pattern, for example if it is alphanumeric or contains only uppercase letters. Regular…