EXTREMELY useful Regular Expressions in Flex

Regular expressions are very powerful tools for performing pattern matches, we can create a regular expression for validating a UPS tracking number, InfoNotice number and decided to do a quick RegExp for validating a USA postal code with JavaScript(@see 10+ Useful JavaScript Regular Expression Functions to improve your web applications efficiency), in fact, Regular Expressions are included in most of the popular develop languages like PHP, PERL, Java… of course Flex.

What can Regular Expressions do? A regular expression describes a pattern that is used to find and manipulate matching text in strings. Regular expressions resemble strings, but they can include special codes to describe patterns and repetition.

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