How Can I Efficiently Extract the Last Segment of a URL in JavaScript?

Retrieving the Last Segment of a URL

In JavaScript, accessing the anchor tag's full URL upon a click is possible using scripts like:

$(".tag_name_goes_here").live('click', function(event)
{
    event.preventDefault();  
    alert($(this).attr("href"));
});

However, consider a URL:

http://mywebsite/folder/file

To display only the "file" segment in the alert box, rather than the whole path:

console.log(this.href.substring(this.href.lastIndexOf('/') + 1));

This approach avoids creating an array of URL segments, which can be more efficient.

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