Nodejs Date Convert toISO8601(key)

Method Source Code

Date.prototype.toISO8601 = function (key) {
    function f(n) {
        // Format integers to have at least two digits.
        return n < 10 ? '0' + n : n;
    }// ww  w . j av  a 2s .  c om
    function f2(n) {
        // Format integers to have at least three digits.
        if(n < 10)
           return '00' + n;
        return n < 100 ? '0' + n : n;
    }

    return isFinite(this.valueOf()) ?
           this.getUTCFullYear()   + '-' +
         f(this.getUTCMonth() + 1) + '-' +
         f(this.getUTCDate())      + 'T' +
         f(this.getUTCHours())     + ':' +
         f(this.getUTCMinutes())   + ':' +
         f(this.getUTCSeconds())   + '.' +
         f2(this.getUTCMilliseconds()) + '-0000' : null;
};

Related

1. toEndTimeInputValue(()

   Date.prototype.toEndTimeInputValue = (function() {
     var local = new Date(this);
     local.setMinutes(this.getMinutes() - this.getTimezoneOffset() + 60);
     return local.toJSON().slice(11,13) + ":00:00";
   });
   

2. toFixedDate()

   Date.prototype.toFixedDate = function(){
     var months = [
       "January", "February", "March",
       "April", "May", "June",
       "Sol",
       "July", "August", "September",
       "October", "November", "December"
     ]
     var daysOfWeek = ["Sunday", "Monday", "Tuesday", "Wednesday",
   ...
   

3. toFormat(format)

   Date.prototype.toFormat = function (format) {
     format = format.replace(/H/, this.getHours());
     format = format.replace(/m/, this.getMinutes());
     format = format.replace(/s/, this.getSeconds());
     return format;
   };
   

4. toISO8601()

   Date.prototype.toISO8601 = function() {
     function pad(n) {
       return n < 10 ? '0' + n : n;
     return this.getUTCFullYear() + '-' + pad(this.getUTCMonth() + 1) + '-' + pad(this.getUTCDate()) + 'T' + pad(this.getUTCHours())
      + ':' + pad(this.getUTCMinutes()) + ':' + pad(this.getUTCSeconds()) + 'Z';
   };
   

5. toISO8601()

   Date.prototype.toISO8601 = function() {    
       var s = [
             this.getFullYear()
           , Date.padZero(this.getMonth() + 1)
           , Date.padZero(this.getDate())
       ].join("-") + "T";
       s += this.getTimeString();
       s += this.getTimezoneOffsetString(true);
       return s;
   ...
   

6. toInputFormat()

   Date.prototype.toInputFormat = function() {
      var yyyy = this.getFullYear().toString();
      var mm = (this.getMonth()+1).toString(); 
      var dd  = this.getDate().toString();
      return yyyy +'-'+ (mm[1]?mm:"0"+mm[0]) +'-'+ (dd[1]?dd:"0"+dd[0]); 
     };
   

7. toLocalTime()

   Date.prototype.toLocalTime = function() {
       const newDate = new Date(this.getTime()+this.getTimezoneOffset()*60*1000);
       let offset = this.getTimezoneOffset() / 60;
       const hours = this.getHours();
       if (this.dst()) offset--;
       newDate.setHours(hours - offset);
       return newDate;
   };
   

8. toLocaleFormat(pattern)

   'use strict';
   Date.prototype.toLocaleFormat = Date.prototype.toLocaleFormat || function (pattern) {
           return pattern.replace(/%Y/g, this.getFullYear()).replace(/%m/g, (this.getMonth() + 1)).replace(/%d/g, this.getDate());
       };
   

9. toLocaleJSON()

   Date.prototype.toLocaleJSON = function() {
     var t = this,
       y = t.getFullYear(),
       M = t.getMonth() + 1,
       d = t.getDate(),
       h = t.getHours(),
       m = t.getMinutes(),
       s = t.getSeconds();
     return y + '/' + (M < 10 ? '0' + M : M) + '/' + (d < 10 ? '0' + d : d) + ' ' +
   ...