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

Just like @3DFace has commented:

path.split(/[\\/]/).pop(); // works with both separators

Or if you like prototypes:

String.prototype.basename = function(sep) {
  sep = sep || '\\/';
  return this.split(new RegExp("["+sep+"]")).pop();
}

Testing:

var str = "http://stackoverflow.com/questions/3820381/need-a-basename-function-in-javascript";
alert(str.basename());

Will return "need-a-basename-function-in-javascript".

Enjoy!