js比较日期大小

第一种方法：

var starttime = "2007-1-2 7:30";

var endtime = "2007-2-31 8:30";

alert(CompareDate(starttime,endtime));

 

function CompareDate(d1,d2)

{

  return ((new Date(d1.replace(/-/g,"\/"))) > (new Date(d2.replace(/-/g,"\/"))));

}

第二种，与当前时间比较

var starttime = "2007-1-2 7:30";

var endtime = "2007-2-31 8:30";

alert(CompareDate(starttime));

alert(CompareDate(endtime));

function CompareDate(data)

{

 var nowTime = new Date();//当前时间

//把字符串格式转换为日期类

var time = new Date(Date.parse(data));

//进行比较

return (curTime>=time);

}