Nodejs Day Calculate getDayShortName()

Method Source Code

Date.prototype.getDayShortName = function()
{
    "use strict";
    var dayName = ["SUN", "MON", "TUE", "WED", "THU", "FRI", "SAT"];
    return dayName[this.getDay()];
};

Related

1. 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':
   ...
   

2. 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);
   ...
   

3. getDayFormatted()

   Date.prototype.getDayFormatted = function() {
       var day = this.getDate();
       return day < 10 ? '0' + day : day; 
   };
   

4. getDayNumber()

   Date.prototype.getDayNumber = function(){
     var oneDay = 1000*3600*24;
     var d = new Date(+this);
     d.setHours(0,0,0,0);
     var newYears = new Date();
     newYears.setDate(1);
     newYears.setMonth(0);
     newYears.setHours(0,0,0,0);
     var timeDiff = Math.abs(d.getTime() - newYears.getTime());
   ...
   

5. getDaySecondsgetDaySeconds()

   Date.prototype.getDaySeconds = function getDaySeconds() {
     return (this.getUTCHours()* 60 + this.getUTCMinutes())*60 + this.getUTCSeconds() + this.getUTCMilliseconds()/1000;
   

6. getDaySimpleSecondsgetDaySimpleSeconds()

   Date.prototype.getDaySimpleSeconds = function getDaySimpleSeconds() {
     return Math.floor(this.getDaySeconds()/ (24*60*60) * (10*100*100));
   

7. getDaySuffix

   Date.prototype.getDaySuffix =
     function(utc) {
       var n = this.getUTCDate();
       if (n != 11 && (n + '').match(/1$/))
         return 'st';
       else if (n != 12 && (n + '').match(/2$/))
         return 'nd';
       else if (n != 13 && (n + '').match(/3$/))
         return 'rd';
   ...
   

8. getDaysBetweenDates(date2)

   'use strict';
   Date.prototype.getDaysBetweenDates = function (date2) {
     var diff = this.getTime() - new Date(date2).getTime();
     return Math.round(diff / (1000 * 60 * 60 * 24));
   };
   

9. getDaysTillNow(since)

   Date.prototype.getDaysTillNow = function (since) {
       var past = new Date(since.getFullYear(), since.getMonth(), since.getDate());
       var today = new Date(this.getFullYear(), this.getMonth(), this.getDate());
       return (today - past) / (24 * 3600000);
   };