How to get number of days from timesamp?

Question

JavaScript

Hello everyone, I'm looking for your help, I can not find it anywhere. We need a script that will output the elapsed number of days from a timesamp value . Thank you.
1 day ago, 2 days ago , 5 days ago , etc.

Answer 1

function getDays(timestamp){
  var days = Math.floor((Date.now() - timestamp)/(1000*60*60*24));

  if(days % 10 == 1)
    days += " день назад";
   else if(days % 10 == 2 || days % 10 == 3 || days % 10 == 4)
   days += " дня назад";
   else
   days += " дней назад";
   return days;
 }
 alert(getDays(Date.now() - 1000*60*60*24*21));//21 день назад

Answer 2

https://momentjs.com/