用JS实现字符串转日期并比较大小的方法

方法1： function compareDate(DateOne,DateTwo) {

var OneMonth = DateOne.substring(5,DateOne.lastIndexOf ("-")); var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf ("-")+1); var OneYear = DateOne.substring(0,DateOne.indexOf ("-"));

var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf ("-")); var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf ("-")+1); var TwoYear = DateTwo.substring(0,DateTwo.indexOf ("-"));

if (Date.parse(OneMonth+"/"+OneDay+"/"+OneYear) > Date.parse(TwoMonth+"/"+TwoDay+"/"+TwoYear)) { return true; } else { return false; }

}

举例： alert(compareDate(''2004-12-01'',''2004-05-02''')); 目前只支持年－月－日这样的格式

方法2：

var checkStartDate = document.form1.checkStartDate.value;

var checkEndDate = document.form1.checkEndDate.value;

var arys= new Array();

var startdate=new Date(arys[0],parseInt(arys[1]-1),arys[2]);

if(checkStartDate != null && checkEndDate != null) {

arys=checkStartDate.split('-');

var startdate=new Date(arys[0],parseInt(arys[1]-1),arys[2]);

arys=checkEndDate.split('-');

var checkEndDate=new Date(arys[0],parseInt(arys[1]-1),arys[2]);

if(startdate > checkEndDate) {

alert("你的检查日期开始时间大于结束时间啦");

return;

}

}