Nodejs Date Add DateAdd(strInterval, Number)

Method Source Code

Date.prototype.DateAdd = function(strInterval, Number) {
   var dtTmp = this;
   switch (strInterval) {
   case 's'://from www  .  j  a  va  2  s.  c o m
      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));

   case 'd':
      return new Date(dtTmp.getFullYear(), (dtTmp.getMonth() + 1), dtTmp
            .getDate()
            + Number, dtTmp.getHours(), dtTmp.getMinutes(), dtTmp
            .getSeconds());
   case 'w':
      return new Date(dtTmp.getFullYear(), (dtTmp.getMonth() + 1), dtTmp
            .getDate()
            + (Number * 7), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp
            .getSeconds());
   case 'q':
      return new Date(dtTmp.getFullYear(), (dtTmp.getMonth() + 1) + Number
            * 3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(),
            dtTmp.getSeconds());

   case 'm':
      return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp
            .getDate() - 1, dtTmp.getHours(), dtTmp.getMinutes(), dtTmp
            .getSeconds());
   case 'y':
      return new Date((dtTmp.getFullYear() + Number), dtTmp.getMonth(), dtTmp
            .getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp
            .getSeconds());
   }

}

Related

1. 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);
   ...
   

2. add(interval, value)

   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();
   ...
   

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("");
   ...