Nodejs Date Add add(interval, value)

Method Source Code

Date.MILLI = 'ms';
Date.SECOND = 's';
Date.MINUTE = 'mi';
Date.HOUR = 'h';
Date.DAY = 'd';
Date.MONTH = 'mo';
Date.YEAR = 'y';

Date.prototype.add = function(interval, value){
  var d = this.clone();
  if (!interval || value === 0) return d;
  switch(interval.toLowerCase()){
    case Date.MILLI:/*from www . j  a  v a  2s.c  om*/
      d.setMilliseconds(this.getMilliseconds() + value);
      break;
    case Date.SECOND:
      d.setSeconds(this.getSeconds() + value);
      break;
    case Date.MINUTE:
      d.setMinutes(this.getMinutes() + value);
      break;
    case Date.HOUR:
      d.setHours(this.getHours() + value);
      break;
    case Date.DAY:
      d.setDate(this.getDate() + value);
      break;
    case Date.MONTH:
      d.setMonth(this.getMonth() + value);
      break;
    case Date.YEAR:
      d.setFullYear(this.getFullYear() + value);
      break;
  }
  return d;
}

Related

1. DateAdd(strInterval, Number)

   Date.prototype.DateAdd = function(strInterval, Number) {
     var dtTmp = this;
     switch (strInterval) {
     case 's':
       return new Date(Date.parse(dtTmp) + (1000 * Number));
     case 'n':
       return new Date(Date.parse(dtTmp) + (60000 * Number));
     case 'h':
       return new Date(Date.parse(dtTmp) + (3600000 * Number));
   ...
   

2. add(amount,field)

   Date.prototype.add=function(amount,field){
     if(amount){
       switch (field)
         case "y":
           this.setFullYear(this.getFullYear() + amount);
           break;
         case "q":
           this.setMonth(this.getMonth() + amount * 3);
   ...
   

3. add(thisMany)

   Date.prototype.add = function(thisMany) {
     var self = this;
     return { minutes: function() {
       var newDate = new Date(self);
       newDate.setMinutes(self.getMinutes() + thisMany);
       return newDate; }};
   };
   

4. addDate(num)

   Number.prototype.addDate=function(num){
       var date=this;
       var dates=[];
       var d=new Date(Number(date).dateFormat());
       d.setDate(d.getDate()+(num));
       dates.push(d.getFullYear());
       dates.push(Number(d.getMonth()+1).addZero());
       dates.push(Number(d.getDate()).addZero());
       var next_date=dates.join("");
   ...
   

5. addMilliseconds(value)

   Date.prototype.addMilliseconds = function(value)
       this.setTime(this.getTime() + value);
       return this;
   };
   

6. dateAdd(interval, number)

   Date.prototype.dateAdd = function (interval, number) {
       var d = new Date(this);
       var k = { 'y': 'FullYear', 'q': 'Month', 'm': 'Month', 'w': 'Date', 'd': 'Date', 'h': 'Hours', 'n': 'Minutes', 's': 'Seconds', 'ms': 'MilliSeconds' };
       var n = { 'q': 3, 'w': 7 };
       eval('d.set' + k[interval] + '(d.get' + k[interval] + '()+' + ((n[interval] || 1) * number) + ')');
       return d;