JS JavaScript计算两日期之间的相差天数
1、直接上代码：
function daysBetween(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 ('/'));
var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000)+1;
return Math.abs(cha);
}
2、用法
3、效果
4、方法已经封装好可以直接使用
下面HTML代码
5、<!DOCTYPE html>
<html>
<head>
<title></title>
</head>
<body>
<button onclick="fun()">测试</button>
<script type="text/javascript">
function fun(){
alert(daysBetween('2017/07/10','2017/07/18'))//id)
}
/*daysBetween(DateOne,DateTwo)
*计算两日期之间的相差天数
*日期格式 yyyy/mm/dd
*两个参数
*/
function daysBetween(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 ('/'));
var cha=((Date.parse(OneMonth+'/'+OneDay+'/'+OneYear)- Date.parse(TwoMonth+'/'+TwoDay+'/'+TwoYear))/86400000)+1;
return Math.abs(cha);
}
</script>
</body>
</html>
6、注意事项日期格式 yyyy/mm/dd
7、返回结果不包括来时两天
