我想在javascript中比较3个日期 [英] I want to compare 3 dates in javascript

问题描述

我在javascript中有3个日期



1）

 var vDate = document.getElementById（'AppliedFor'+ RowNo）.value; 

它的日期为

25 / May / 2018

2）

 var HDNSessionFromDate1 = document.getElementById（'HDNSessionFromDate'）。value; 

它给我的日期为

01 / Apr / 2018

3）

 var HDNSessionToDate = document.getElementById（'HDNSessionToDate' ）.value; 

它给出的日期为

31 / Mar / 2019

现在我要检查我的日期

 vDate应介于< pre> HDNSessionFromDate1 

和

 HDNSessionToDate  
 
 
 
 我尝试过： 
 
 
 
 
我在javascript中有3个日期
 
 1）< pre> var vDate = document.getElementById（'AppliedFor'+ RowNo）.value; 
 
 
它的日期为
25 / May / 2018
 
 
 
 
 2）
 var HDNSessionFromDate1 = document.getElementById（'HDNSessionFromDate'）。value; 
 
 
它给我的日期为
01 / Apr / 2018 
 
 
 
 
 3）
 var HDNSessionToDate = document.getElementById（'HDNSessionToDate'）。value; 
 
 
它给日期
31 / Mar / 2019
 
 
 
 
现在我想查看我的日期
 vDate应介于< pre> HDNSessionFromDate1 
和
 HDNSessionToDate 
 
 $之间b $ b 
 
现在我将它转换为mm / dd / yyyy格式，因为我有功能
 
 GetNewFormat（）
 
 
 
 
 var temp = GetNewFormat（vDate）; 
 
这里我的日期为05/25/2018 
 
 temp = temp.split（/）; 
 var month = parseInt（temp [0]）; 
 var day = parseInt（temp [1]）; 
 var year = parseInt（temp [2]）; 
 
 
 var temp1 = GetNewFormat（HDNSessionFromDate1）; 
 
这里我得到日期为04/01/2018
 
 temp1 = temp1.split（/）; 
 var month1 = parseInt（temp1 [0]）; 
 var day1 = parseInt（temp1 [1]）; 
 var year1 = parseInt（temp1 [2]）; 
 
 var temp2 = GetNewFormat（HDNSessionToDate）; 
 
这里我得到日期为03/31/2019
 
 temp2 = temp2.​​split（/）; 
 var month2 = parseInt（temp2 [0]）; 
 var day2 = parseInt（temp2 [1]）; 
 var year2 = parseInt（temp2 [2]）; 
 alert（year2）; 
 var vDate1 =新日期（年，月，日）; 
 alert（vDate1）; 
 
 
 
 
现在我有
 
 
 var vDate1 =新日期（年，月，日）; 
 var vDate2 =新日期（year1，month1，day1）; 
 var vDate3 =新日期（year2，month2，day2）; 
 alert（vDate1）; 
 
 
 if（vDate1> = vDate2&& vDate1< = vDate3）
 {
 lblresult.innerHTML =请输入有效日期
 lblresult.className ='红色'; 
 document.getElementById（'AppliedFor'+ RowNo）.focus（）; 
返回false; 
} 
 
 
 
 
 
 
 
但它给出了$ b $的错误b var vDate1 =新日期（年，月，日）; 
 
 
 
我创建的函数以下列格式给出日期
 
 
< pre>函数GetNewFormat（datevar）{
 var mon; 
 var m1 = datevar.substring（3,6）; 
 
 switch（m1.toLowerCase（））{
 casejan：
 mon = 01; 
休息; 
 casefeb：
 mon = 02; 
休息; 
 casemar：
 mon = 03; 
休息; 
 caseapr：
 mon = 04; 
休息; 
 casemay：
 mon = 05; 
休息; 
 casejun：
 mon = 06; 
休息; 
 casejul：
 mon = 07; 
休息; 
 caseaug：
 mon = 08; 
休息; 
 casesep：
 mon = 09; 
休息; 
 caseoct：
 mon = 10; 
休息; 
 casenov：
 mon = 11; 
休息; 
 casedec：
 mon = 12; 
休息; 
} 
 datevar = mon +/+ datevar.substring（0,3）+ datevar.substring（7）; 
 return datevar; 
} 
 
解决方案
 
用于创建Date（）对象的月份应为0-11而不是1-12。 
 
 
 
  JavaScript日期参考 [ ^ ] 
 
 
I have 3 Dates in javascript



1)  
var vDate = document.getElementById('AppliedFor' + RowNo).value;


it gives date as 
"25/May/2018"




2)  
var HDNSessionFromDate1 = document.getElementById('HDNSessionFromDate').value;


it Gives me Date as 
"01/Apr/2018"




3)
var HDNSessionToDate = document.getElementById('HDNSessionToDate').value;


it gives Date as 
"31/Mar/2019"




now I want To check my date 
vDate should be in between <pre>HDNSessionFromDate1 
 and 
HDNSessionToDate 




What I have tried:



I have 3 Dates in javascript

1)  <pre>var vDate = document.getElementById('AppliedFor' + RowNo).value;


it gives date as 
"25/May/2018"




2)  
var HDNSessionFromDate1 = document.getElementById('HDNSessionFromDate').value;


it Gives me Date as 
"01/Apr/2018"




3)
var HDNSessionToDate = document.getElementById('HDNSessionToDate').value;


it gives Date as 
"31/Mar/2019"




now I want To check my date 
vDate should be in between <pre>HDNSessionFromDate1 
 and 
HDNSessionToDate 




now I am converting it into mm/dd/yyyy format for that I have function

GetNewFormat()



var temp = GetNewFormat(vDate);

here I am getting Date  as 05/25/2018

        temp = temp.split("/");
        var month = parseInt(temp[0]);
        var day = parseInt(temp[1]);
        var year =parseInt(temp[2]);


        var temp1 = GetNewFormat(HDNSessionFromDate1);

here I am getting Date  as "04/01/2018"

        temp1 = temp1.split("/");
        var month1 = parseInt(temp1[0]);
        var day1 = parseInt(temp1[1]);
        var year1 = parseInt(temp1[2]);

        var temp2 = GetNewFormat(HDNSessionToDate);

     here I am getting Date  as  "03/31/2019"       

        temp2 = temp2.split("/");
        var month2 =parseInt(temp2[0]);
        var day2 =parseInt(temp2[1]);
        var year2 =parseInt(temp2[2]);
        alert(year2);
        var vDate1 = new Date(year, month, day);
        alert(vDate1);




now I have

var vDate1 = new Date(year, month, day);
        var vDate2=new Date(year1, month1, day1);
        var vDate3=new Date(year2, month2, day2);
        alert(vDate1);


        if (vDate1 >= vDate2 && vDate1 <= vDate3)
        {
            lblresult.innerHTML = "Please Enter Valid Date"
                lblresult.className = 'Red';
                document.getElementById('AppliedFor' + RowNo).focus();
                return false;
        }






but It Gives error at
var vDate1 = new Date(year, month, day);



I created Function which gives date in following format


<pre>function GetNewFormat(datevar) {
    var mon;
    var m1 = datevar.substring(3, 6);

    switch (m1.toLowerCase()) {
        case "jan":
            mon = 01;
            break;
        case "feb":
            mon = 02;
            break;
        case "mar":
            mon = 03;
            break;
        case "apr":
            mon = 04;
            break;
        case "may":
            mon = 05;
            break;
        case "jun":
            mon = 06;
            break;
        case "jul":
            mon = 07;
            break;
        case "aug":
            mon = 08;
            break;
        case "sep":
            mon = 09;
            break;
        case "oct":
            mon = 10;
            break;
        case "nov":
            mon = 11;
            break;
        case "dec":
            mon = 12;
            break;
    }
    datevar = mon + "/" + datevar.substring(0, 3) + datevar.substring(7);
    return datevar;
}
解决方案
The month used to create a Date() object should be 0-11 instead of 1-12.



JavaScript Date Reference[^]


                        
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