js function to get filename from url

Question

I have a url like http://www.example.com/blah/th.html

I need a javascript function to give me the \'th\' value from that.

All my urls have the same format (2

Answer 1

my 2 cents

the LastIndexOf("/") method in itself falls down if the querystrings contain "/"

We all know they "should" be encoded as %2F but it would only take one un-escaped value to cause problems.

This version correctly handles /'s in the querystrings and has no reliance on .'s in the url

function getPageName() {
    //#### Grab the url
    var FullUrl = window.location.href;

    //#### Remove QueryStrings
    var UrlSegments = FullUrl.split("?")
    FullUrl = UrlSegments[0];

    //#### Extract the filename
    return FullUrl.substr(FullUrl.lastIndexOf("/") + 1);
}