Here you can find the source of addMinutes(minutes)
Date.prototype.addMinutes = function(minutes) { var date = this; return new Date(date.getTime() + (minutes * 60 * 1000)); };
Date.prototype.addMinutes = function (m) { this.setMinutes(this.getMinutes()+m); return this; };
Date.prototype.addMinutes = function (mins) { var dat = new Date(0); dat.setMilliseconds(this.getTime() + (mins * 60000)); return dat; };
'use strict'; Date.prototype.addMinutes = function(minutes){ this.setMinutes(this.getMinutes() + minutes); return this; };
Date.prototype.addMinutes = function (minutes) { return new Date(this.getTime() + minutes * 60000);
Date.prototype.addMinutes = function(minutes) { var copiedDate = new Date(this.getTime()); return new Date(copiedDate.getTime() + minutes * 60000); };