jQuery find file extension (from string)

Question

I was wondering if it was possible for jQuery to find a file extension based on a returned string?

A filename (string) will be passed to a function (openFile) and I

Answer 1

Since the extension will always be the string after a period in a complete/partial file name, just use the built in split function in js, and test the resultant extension for what you want it to do. If split returns only one piece / no pieces, it does not contain an extension.