fe fi fo fum fam for the shenanigans

foo.html

  <script src="lodash.custom.min.js"></script>
  <script type="text/javascript">
    /*
     Example:
     _({key: value}).join('=', ';') === 'key=value;'
    */
    (function(){
      var oldJoin = _.prototype.join;
      _.prototype.join = function (colon, comma) {
        if ( comma ) {
          var result = '';
          _(this).forOwn(function(key, value) {
            result += key + colon + value + comma;
          });
          //remove last comma
          return result.substring(0, result.length - comma.length);
        } else if (_.isFunction(oldJoin)) {
          return oldJoin.apply(
            this,
            Array.prototype.slice.call(arguments, 0)
          );
        } else {
          throw new Error('Please pass in a second argument');
        }
      };
      /*
       Example:
      'http://domain.com/page?' + _.querystring({apples: '1.5', oranges: '2'})
      'http://domain.com/page?' + 'apples=1.5&oranges=2'
      */
      _.querystring = function(hash) {
        return _(hash).join('=', '&');
      };
    })();
  </script>