Replace any character with exceptions

[mike_g]

Hi, I'm working on some validation functions at the moment using string replace(). What I have been doing so far seems tediously slow. For example, to strip all alpha characters from a string I have been doing this:

str = str.replace(/a/gi, "");

From A through to Z.Now I want to strip all characters except for numbers. I imagine there must be a faster way then simply running a string replace for every other character. Is this possible? Suggestions appreciated

[jesh]

str = str.replace(/[^0-9]/gi, "");

Check out this site for some good regular expressions tutorials/references: http://www.regular-expressions.info/

[mike_g]

Cool, thanks for that.

[jesh]

Any time.