Here you can find the source of addDays(d)
Date.prototype.addDays = function (d) { if (d) {/*from w w w.j av a2 s . c o m*/ var t = this.getTime(); t = t + (d * 86400000); this.setTime(t); return this; } };
Date.prototype.AddDays = function(amount) { var d = new Date(this.getTime()); d.setDate(this.getDate() + amount); return d; };
Date.prototype.AddDays = function (days) { this.setDate(this.getDate() + parseInt(days)); return this.getFullYear() + "-" + (((this.getMonth()+1) < 10)?"0":"") + (this.getMonth()+1) +"-"+ ((this.getDate() < 10)?"0":"") + this.getDate();
Date.prototype.addDay = function(){
this.setDate(this.getDate() + 1);
};
Date.prototype.addDay = function(day) { if (null == day || isNaN(day)) { return this; this.setDate(this.getDate() + day); return this; };
Date.prototype.addDay = function addDay () { var day = this.getDate(); this.setDate(day + 1); this.setHours(0); this.setMinutes(0); this.setSeconds(0); if (this.getDate() === day) { this.setDate(day + 2); };
Date.prototype.addDays = function(d) { this.setTime(this.getTime() + (d*24*60*60*1000)); return this;
Date.prototype.addDays = function(d){ this.setDate(this.getDate()+d); return this;
Date.prototype.addDays = function(d) { this.setDate(this.getDate() + d); }; Date.prototype.addWeeks = function(w) { this.addDays(w * 7); }; Date.prototype.addMonths = function(m) { var d = this.getDate(); this.setMonth(this.getMonth() + m); ...
Date.prototype.addDays = function(d) {
this.setDate(this.getDate() + d);
};