DateSort steps with Jasmine

DataSort3.js

DateSort.prototype.sortedDesc = function(theArray){
  return theArray.sort(date_sort_desc);
}

var date_sort_desc = function(a,b){
  a = new Date(a.publishDate);
  b = new Date(b.publishDate);
  return a<b ? 1 : a>b ? -1 : 0;
};