Nodejs Date Format formatDate(format)

Method Source Code

Date.prototype.formatDate = function(format) {
  var months = new Array("Jan","Feb","Mar","Apr","May","Jun","Jul","Aug","Sep","Oct","Nov","Dec");
  var yyyy = this.getFullYear();
  var yy = yyyy.toString().substring(2);
  var m = this.getMonth() + 1;
  var mm = m < 10 ? "0" + m : m;
  var mmm = months[m - 1];
  var d = this.getDate();
  var dd = d < 10 ? "0" + d : d;
  
  var h = this.getHours();
  var hh = h < 10 ? "0" + h : h;
  var n = this.getMinutes();
  var nn = n < 10 ? "0" + n : n;
  var s = this.getSeconds();
  var ss = s < 10 ? "0" + s : s;

  format = format.replace(/yyyy/i, yyyy);
  format = format.replace(/yy/i, yy);//from   ww  w . j ava  2 s  .  c om
  format = format.replace(/mmm/i, mmm);
  format = format.replace(/mm/i, mm);
  format = format.replace(/m/i, m);
  format = format.replace(/dd/i, dd);
  format = format.replace(/d/i, d);
  format = format.replace(/hh/i, hh);
  format = format.replace(/h/i, h);
  format = format.replace(/nn/i, nn);
  format = format.replace(/n/i, n);
  format = format.replace(/ss/i, ss);
  format = format.replace(/s/i, s);

  return format;
};

Related

1. formatAMPM(date)

   function formatAMPM(date) {
     var hours = date.getHours();
     var minutes = date.getMinutes();
     var ampm = hours >= 12 ? 'pm' : 'am';
     hours = hours % 12;
     hours = hours ? hours : 12; 
     minutes = minutes < 10 ? '0'+minutes : minutes;
     var strTime = hours + ':' + minutes + ' ' + ampm;
     return strTime;
   ...
   

2. formatDate(date)

   function formatDate(date) {
     if(date instanceof Date === false) {
       return console.log("err");
     var year = date.getFullYear();
     var month = pad(date.getMonth() + 1);
     var day = pad(date.getDate());
     return [year, month, day].join('-');
   

3. formatDate(date)

   function formatDate(date){
     return date.split('-').reverse().join('/');
   

4. formatDate(format)

   Date.prototype.formatDate = function(format) {
     var date = this,
       day = date.getDate(),
       month = date.getMonth() + 1,
       year = date.getFullYear(),
       hours = date.getHours(),
       minutes = date.getMinutes(),
       seconds = date.getSeconds();
     if (!format) {
   ...
   

5. formatDate(format)

   Date.prototype.formatDate = function (format) {
       var date = this,
           day = date.getDate(),
           month = date.getMonth() + 1,
           year = date.getFullYear(),
           hours = date.getHours(),
           minutes = date.getMinutes(),
           seconds = date.getSeconds();
       if (!format) {
   ...
   

6. formatDay(pattern, dayNames = [], monthnames = [])

   Date.prototype.formatDay = function (pattern, dayNames = [], monthnames = []) {
       pattern = pattern.replace(/dddd/g, dayNames[this.getDay()]);
       pattern = pattern.replace(/dd/g, this.getDate().toString().padLeft(2, 0));
       pattern = pattern.replace(/mmm/g, monthnames[this.getMonth()]);
       pattern = pattern.replace(/mm/g, (this.getMonth() + 1).toString().padLeft(2, 0));
       pattern = pattern.replace(/yyyy/g, this.getFullYear().toString());
       pattern = pattern.replace(/yy/g, this.getFullYear().toString().substr(2, 2));
       return pattern;
   };
   ...
   

7. formatMMDD()

   Date.prototype.formatMMDD = function () {
      return this.getMonth() + 1 + '/' + this.getDate();
   };
   

8. formatMMDDYYYY()

   Date.prototype.formatMMDDYYYY = function () {
      return this.getMonth() + 1 + '/' + this.getDate() + '/' + this.getFullYear();
   };
   

9. formatStr()

   Date.prototype.formatStr=function(){
       function convert2fixed(str){
           var _num=Number(str);
           if(!isNaN(str)){
               if(_num<10){
                   return '0'+_num;
               }else
               return _num;
   ...