Differences between C# and JavaScript Regular Expressions? [closed]

Answer 1

First, some resources:

• Mozilla Development Center JavaScript Guide: Regular Expressions
• .NET Framework Regular Expressions - see the links at the bottom of the page

Here are a few differences:

• Lookahead is not supported in IE6 and IE7. (Search for x(?=y) in the MDC guide for for examples.)
• JavaScript doesn't support named capture groups. Example: (?)
• The list of metacharacters supported by JavaScript is much shorter.