Nodejs Time Calculate timeSince(date)

Method Source Code

String.prototype.startsWith = function (str){
  return this.indexOf(str) === 0;
};

timeSince = function (date) {

  var seconds = Math.floor((new Date() - date) / 1000);

  var interval = Math.floor(seconds / 31536000);

  if (interval >= 1) {
      if(interval == 1){
        return "about " + interval + " year ago";
      }//from w w  w.  j  a v  a  2s .  c o  m
      return "about " + interval + " years ago";
  }
  interval = Math.floor(seconds / 2592000);
  if (interval >= 1) {
      if(interval == 1){
        return "about " + interval + " month ago";
      }
      return "about " + interval + " months ago";
  }
  interval = Math.floor(seconds / 86400);
  if (interval >= 1) {
      if(interval == 1){
        return "about " + interval + " day ago";
      }
      return "about " + interval + " days ago";
  }
  interval = Math.floor(seconds / 3600);
  if (interval >= 1) {
      if(interval == 1){
        return "about " + interval + " hour ago";
      }
      return "about " + interval + " hours ago";
  }
  interval = Math.floor(seconds / 60);
  if (interval >= 1) {
      if(interval == 1){
        return interval + " minute ago";
      }
      return interval + " minutes ago";
  }
  return "less than a minute ago";
};

Related

1. time24()

   Date.prototype.time24 = function()
     var hours = "" + this.getHours();
     var minutes = "" + this.getMinutes();
     var seconds = "" + this.getSeconds();
     if(hours.length < 2)
       hours = "0"+hours;
     if(minutes.length < 2)
       minutes = "0"+minutes;
   ...
   

2. timeAgo(date)

   String.prototype.format = function(obj) {
     var args = arguments;
     var str = this;
     return str.replace(/\{[\w\d_-]+\}/g, function(part) {
       part = part.slice(1, -1);
       var index = parseInt(part, 10);
       if (isNaN(index)) {
         return obj[part];
       } else {
   ...
   

3. timeAgoInWords(relativeDate)

   "use strict";
   Date.prototype.timeAgoInWords = function (relativeDate) {
       var delta;
       relativeDate = relativeDate || new Date();
       delta = parseInt((relativeDate.getTime() - this) / 1000, 10);
       if (delta < 60) {
           return 'less than a minute ago';
       } else if (delta < 120) {
         return 'about a minute ago';
   ...
   

4. timeFmt(aDate)

   var timeFmt = function (aDate) {
       if (null == aDate) {
           return "";
       else {
           return new Date(aDate).format("yyyy-MM-dd hh:mm:ss");
   };
   

5. timeSecond()

   Date.prototype.timeSecond = function () {
        return ((this.getSeconds() < 10)?"0":"") + this.getSeconds();
   

6. timeStr()

   var DAY_WIDTH = 100;
   var DAY_HEIGHT = 80;
   var SIDE_DELTA = 2;
   var DAY_HEADING = ["SUN",
                      "MON",
                      "TUE",
                      "WED",
                      "THU",
                      "FRI",
   ...
   

7. timeToJSON()

   Date.prototype.timeToJSON = function() {
     return this.toLocaleTimeString().substring(0,5);
   };
   

8. timeToMidnight()

   Date.prototype.timeToMidnight = function() {
       this.setHours(0);
       this.setMinutes(0);
       this.setMilliseconds(0);
   };
   

9. time_ago_in_words(date)

   function time_between_in_words(from_date, to_date)
     return format_milliseconds(Math.abs(from_date.getTime()-to_date.getTime()));
   function time_ago_in_words(date)
     return format_milliseconds(Math.abs(Date.now()-date.getTime()));
   function format_milliseconds(milsecs)
   ...