Javascript Function

In the previous tutorial we introduced the concept of grouping characters together to be able to test for multiple occurrences of them as a group. Groups are in fact far more powerful than that b...

In the last two tutorials we have looked at two different uses for groups. to allow us to test for multiple repetitions of a group of characters ...

Lookahead means being able to examine what follows a particular pattern within our regular expression without actually including that following text in the pattern itself. There are two variants ...

All of the regular expressions we have looked at so far will process the text that we are comparing the expression to as if it were a single line. This will work fine provided that we do not need...

Throughout this tutorial series I have shown you how to code your regular expressions by enclosing them between slashes. There is actually a second way to define a regular expression using a more...

We have already used some of the properties belonging to the RegExp object in previous tutorials. You probably didn't realise that we had though because the way that we have used them is not ...

We'll now move on to consider some more of the properties that we haven't referenced before. Unless a regular expression is testing for start of field, end of field, or both, a regular ex...

As well as having lots of properties, regular expression objects also have a number of methods (functions) associated with them. We looked at two of these methods in the first two tutorials in th...

We have already looked at most of the string methods that can be used with regular expressions in the first few tutorials. To make it easier for you to remember what they are a...

We'll finish this series of tutorials on regular expressions with a list of all of the different special character combinations that can be used in regular expressions. The links back to the tuto...