Nodejs Day Calculate DiffInDays(date)

Method Source Code

Date.prototype.DiffInDays = function (date) {
   if(date instanceof Date && !isNaN(date.getTime())) {
      var cDate = this.getTime();
      var tDate = date.getTime();
      /*from   ww  w .  jav  a2 s  . c o  m*/
      var resultMillis = Math.abs(cDate - tDate);
      
      var result = resultMillis / 1000 / 60 / 60 / 24;
      
      return result;
   } else {
      console.error(date, " is not a valid date.")
   }
}

Related

1. Date.Timecop travelDays(newOffset)

   this.models = {}
   Date.Timecop = function() {
     this.daysOffset = 0
   Date.timecop = new Date.Timecop
   Date.Timecop.prototype.travelDays = function(newOffset) {
     this.daysOffset = newOffset
   Date.Timecop.prototype.now = function() {
   ...
   

2. Date.dayDateFromTime(time)

   Date.dayDateFromTime = function(time) {
       var date = new Date(time);
       date.setHours(0, 0, 0, 0);
       return date;
   };
   

3. MaxDayOfDate(date)

   Date.prototype.MaxDayOfDate = function(date) {
       var nowDate = new Date(date.getFullYear(), date.getMonth() + 1, 0);
       var lastDay = nowDate.getDate();
       return lastDay;
   };
   

4. countDown(withDays)

   Date.prototype.countDown = function(withDays){
       addDays = (typeof withDays === 'undefined') ? true : withDays;
     var timeLeft = (this/1000) - ((new Date())/1000)
     var days, hours, minutes, seconds;
       var timeArray = []
       if(addDays){
        days = parseInt(timeLeft/86400)
          timeArray.push(days)
        timeLeft = timeLeft % 86400
   ...
   

5. dayName(language)

   Date.prototype.dayName = function(language) {
     var dayName = "";
     language = language || 'en';
     switch(language.toLowerCase()) 
       case 'en':
         dayName = ['Sunday','Monday','Tuesday','Wednesday', 'Thursday','Friday','Saturday'];
         break;
       case 'es':
   ...
   

6. dayNamesDate.dayNames;

   Date.dayNames = ["Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"];
   Date.monthNames = ["January", "February", "March", "April", "May", "June", "July", "August", "September", "October", "November", "December"];
   Date.prototype.dayNames = Date.dayNames;
   Date.prototype.monthNames = Date.monthNames;
   Date.prototype.getDayName = function() {
     return this.dayNames[this.getDay()];
   };
   Date.prototype.getDayNameAbbr = function() {
     return this.getDayName().slice(0,4);
   ...