How to get last folder name from folder path in javascript?

Question

In javascript/jquery, given a path to a folder like:

"http://www.blah/foo/bar/" 

or

"http://www.blah/foo/bar" (this one doesn't have a slash in the end)

How can you extract the name of the last folder? In this case it would be "bar".

Is there an easy way through a built in function?

Thanks.

Answer 1

Use the power of the regular expression :

var name = path.match(/([^\/]*)\/*$/)[1]

Notice that this isn't the last "folder" (which isn't defined in your case and in the general case of an URL) but the last path token.

Answer 2

Use regular expressions! or:

var arr = 'http://www.blah/foo/bar/'.split('/');
var last = arr[arr.length-1] || arr[arr.length-2];

this accounts for 'http://www.blah/foo/bar////' :p (or crashes the browser)

var arr = 'http://www.blah/foo/bar/////'.split('/');
var last = (function trololol(i) {
  return arr[i] || trololol(i-1);
})(arr.length-1);