本文实例讲述了js比较日期大小的方法。分享给大家供大家参考。具体如下：

function DateDiff(d1,d2){ var result = Date.parse(d1.replace(/-/g,"/"))- Date.parse(d2.replace(/-/g,"/")); return result;}function DateDiff(d1,d2){ start_at = new Date(d1.replace(/^(\d{4})(\d{2})(\d{2})$/,"$1/$2/$3")); end_at = new Date(d2.replace(/^(\d{4})(\d{2})(\d{2})$/,"$1/$2/$3")); if(start_at > end_at) { return false; } return true;}//js获取当前日期function currentDay(){ var mydate=new Date(); var mymonth=mydate.getMonth()+1; var myday= mydate.getDate(); var myyear= mydate.getYear(); mymonth=mymonth<10?"0"+mymonth:mymonth; myday=myday<10?"0"+myday:myday; var day=myyear+"-"+mymonth+"-"+myday; return day;}

希望本文所述对大家的javascript程序设计有所帮助。