This task   (the reverse of   URL encoding   and distinct from   URL parser)   is to provide a function
or mechanism to convert an URL-encoded string into its original unencoded form.



Test cases

   The encoded string   "http%3A%2F%2Ffoo%20bar%2F"   should be reverted to the unencoded form   "http://foo bar/".
   The encoded string   "google.com/search?q=%60Abdu%27l-Bah%C3%A1"   should revert to the unencoded form   "google.com/search?q=`Abdu'l-Bahá".


 
1) define a new javascript primitive:
{script 
  LAMBDATALK.DICT['decodeURIComponent'] = function() {
    return decodeURIComponent( arguments[0].trim() );
  };
}
 
2) and use it:
{decodeURIComponent http%3A%2F%2Ffoo%20bar%2F}
-> http://foo bar/
 
 
 
 