how to arrange date with day in descending order in array in nodejs code example

Example 1: javascript order array by date

const sortedActivities = activities.sort((a, b) => b.date - a.date)

Example 2: Sort Date string in javascript

array.sort(function(o1,o2){
  if (sort_o1_before_o2)    return -1;
  else if(sort_o1_after_o2) return  1;
  else                      return  0;
});