Regular Expressions in Javascript

Regular Expressions provide a very powerful addition to a developers toolbox. They have a myriad of uses, from form validation to Search and Replace. In this tutorial we are going to have a quick look at Regular Expressions and provide a basic outline of their syntax and usage so that you can begin to include them in your own work.

This tutorial provides a quick tour of the key areas of Regular Expressions, including :

• Introduction
      This page
• What is a Regular Expression ?
      what are they, what are they used for, where do they come from ?
• What do they look like ?
      What is the format of a Regular Expression and some shortcuts.
• Over to You
      A selection of situations for you to convert to Regular Expressions.
• Regular Expression Test Harness
      A web front end to a Regular Expression test page.
• Limitations of Regular Expressions
      What are the trip and traps of using Regular Expressions and how to avoid them.
• Using Regular Expressions in Javascript
      How to use Regular Expressions in client side Javascript.
• Conclusion
      Summary, futher reading and resources.