javascript 如何比较javascript中的日期？

How to compare dates in javascript?

提问by binil

i want to compare two dates. i used this code

我想比较两个日期。我用了这个代码

function addRow(dateval,bidchekval) {                       
    var val1 = document.getElementById(dateval);            

   var valcheck=document.getElementById(bidchekval).value;
   var val123=document.getElementById(dateval).value;

   if(val123 > valcheck ){
       alert("success");
   }
}

This is the code that i used but when change month then it will break.those two dates get using date picker. date format example:06-12-2013 15:12:15

这是我使用的代码，但是当更改月份时它会​​中断。这两个日期使用日期选择器。日期格式示例：06-12-2013 15:12:15

回答by Mukesh Soni

if((new Date(val123).getTime()) > (new Date(valcheck).getTime()) ){
       alert("success");
   }

回答by vikingmaster

You cannot compare strings, but you can compare Dateobjects.

您不能比较字符串，但可以比较Date对象。

var valcheck=document.getElementById(bidchekval).value;
var val123=document.getElementById(dateval).value;

var check = new Date(valcheck) ;
var check123 = new Date(val123) ;

if (check > check123){
  alwer("Success") ;
}