Need a basename function in Javascript

Question

I need a short basename function (one-liner ?) for Javascript:

basename(\"/a/folder/file.a.ext\") -> \"file.a\"
basename(\"/a/folder/file.ext\") -> \"f         


        

Answer 1

 basename = function(path) {
    return path.replace(/.*\/|\.[^.]*$/g, '');
 }

replace anything that ends with a slash .*\/ or dot - some non-dots - end \.[^.]*$ with nothing