Jquery custom string comparison function with output percentage

Question

I am looking to write a function in Jquery that compares two strings and returns a percentage of similarity..exactly like the PHP function similar_text:

http://www.php.net/manual/en/function.similar-text.php

Ideas on how to tackle this with Jquery/Javascript? Thanks!

Answer 1

PHP.JS have it: http://phpjs.org/functions/similar_text:902