A regular expression lets you work with pattern matching. This is great for ensuring that phone numbers, social security numbers, passwords, email addresses and other values are of the proper format.

Regular Expression Pattern Matching
Regular Expressions let you do pattern matching in VBScript and ASP. In essence, you can validate that any input string matches up to your required letter/number settings.

Writing Regular Expression Code
If you understand how wonderfully regular expressions can help you with your pattern matching needs, here is a walkthrough on creating ASP code.

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