code: function each(ary, func) {
          if (ary) {
              var i;
              for (i = 0; i < ary.length; i += 1) {
                  if (ary[i] && func(ary[i], i, ary)) {
                      break;
                  }
              }
          }
      }
docs: Helper function for iterating over an array. If the func returns
  a true value, it will break out of the loop.