日期的天数差

ruan0953 2009-07-21 12:58:22

有两个文本输入框(输入的是yyyy-MM-dd),
如何了用JAVASCRIPT取得这两个日期的天数差?

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chen_ya_ping 2009-07-21

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<script type="text/javascript" language="javascript">

    function ComputeDate() { 

    var year;

    var month;

    var day;

    var text;

    text=document.getElementById("startDate").value;

    var startDate =  getYMD(text);

    text = document.getElementById("endDate").value;

    var endDate = getYMD(text);

    var day = (endDate.getTime() - startDate.getTime()) / (1000 * 60 * 60 * 24);

    alert(day);

}

function getYMD(text) {

    var index1, index2;

     index1 = text.indexOf("-");

    index2 = text.lastIndexOf("-");

    year = text.substring(0, index1);

    month = text.substring(index1 + 1, index2);

    day = text.substring(index2 + 1, text.length);

    return new Date(year, month - 1, day - 1);

 }

</script>

浪尖赏花 2009-07-21

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<html>



<head>

<meta http-equiv="Content-Type" content="text/html; charset=gb2312">

<title>test</title>

<script>

function on_click(){

var v1 = document.getElementById("txt1").value.replace("-","/");

var v2 = document.getElementById("txt2").value.replace("-","/");

var d1 = new Date(v1);

var d2  =new Date(v2);

alert("相差："+(d2.getTime()-d1.getTime())/24/3600/1000+"天");

}

</script>

</head>



<body>

<input type=text id=txt1 value="2009-07-01">

<input type=text id=txt2 value="2009-07-19">

<input type=button onclick="on_click()" value="show">

</div>



</body>



</html>

hookee 2009-07-21

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var s1= "2009-7-1";

var s2= "2009-8-1";



dt1 = Date.parse(s1.replace(/-/g,"/"));

dt2 = Date.parse(s2.replace(/-/g,"/"));

diff = (dt2-dt1)/(24*60*60*1000);

alert(diff);

FangYANYI 2009-07-21

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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);
return Math.abs(cha);
}

诸葛工作室 2009-07-21

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function DateCompare(asStartDate,asEndDate){
var miStart=Date.parse(asStartDate.replace(/\-/g,'/'));
var miEnd=Date.parse(asEndDate.replace(/\-/g,'/'));
return (miEnd-miStart)/(1000*24*3600)<0; //计算结束日期与开始日期的天数差
}