检查javascript的验证 [英] checking the validation for javascript

问题描述

亲爱的所有人，

请查看以下javascript:

Dear All,

Please take a look at the following javascript:

function validate()
    {
            if(!checkDate( document.form1.txtFdate.value ) )
            {
                alert("Invalid Date");
                document.getElementById("txtFdate").focus();
                return false;
            }
            if(!checkDate( document.form1.txtTdate.value ) )
            {
                alert("Invalid Date");
                document.getElementById("txtTdate").focus();
                return false;
            }
            var dateString=document.form1.txtFdate.value;
            var Fdate = (dateString.substring(6,10))+(dateString.substring(3,5))+(dateString.substring(0,2));
            dateString=document.form1.txtTdate.value;
            var Tdate = (dateString.substring(6,10))+(dateString.substring(3,5))+(dateString.substring(0,2));
            if(parseInt(Tdate,10)<parseInt(Fdate,10))
            {
                alert("To Date Cannot Be Less Than From Date");
                document.getElementById("txtTdate").focus();
                return false;
            }
            if((parseInt(Tdate,10)-parseInt(Fdate,10))>6)
            {
                alert("Difference Between From and To Date Cannot Be More than 6 Days");
                document.getElementById("txtTdate").focus();
                return false;
            }

           }

在这里，它适用于每个月，但如果我选择从3月31日到4月1日，它会显示相同的消息，即从日期到日期之间的差异不能超过6天".
这可能是什么问题?请帮助我.....

Here Its working fine for the Individual month, but if I select 31st march to 1st April, it gives the same message saying "Difference Between From and To Date Cannot Be More than 6 Days".
What might be the problem in this? please help me.....

推荐答案

try:

var Fdate =(dateString.substring(7,10))+(dateString.substring(3,4))+(dateString.substring(0,1));

与Tdate相同...

try :

var Fdate = (dateString.substring(7,10))+(dateString.substring(3,4))+(dateString.substring(0,1));

the same for Tdate ...

用于进行日期比较的精确方法是在比较之前将日期转换为毫秒/秒(时间戳).这是另一种建议

The precise method for date comparison would be convert the date to milliseconds/ seconds (timestamp) before comparing. It is an alternative suggestion

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