I'll be honest, the first time I saw a regular expression, it was a scary experience. It looks like a weird alien language! I thought to myself: "I've spent months learning programming and now i gotta ...

For instance, in the phone number regular expression: In the first case, the inner parentheses ($1,$2 and $3) are evaluated first, then the engine moves outside of it and grabs the full number ($4).

We in very common scenario come across a scenario where we want user to just be able to enter Mobile Number Format. This small code piece will help in validating user to enter only Mobile number ...

GIVEN a regex tutorial WHEN I open the tutorial THEN I see a descriptive title and introductory paragraph explaining the purpose of the tutorial, a summary describing the regex featured in the ...