Compare dates - iso format

[maralfarshadi]

Hi everybody

The date values entered in my text boxes (startDate and endDate) in my form are in ISO format YYYY-MM-DD.

Could you please help me and explain how I can compare the date values to make sure the start date is smaller than the end date?

I have something like the following, but it is not working (I guess due to ISO format)

if ( new Date(document.SearchFrm.startDate.value) > new Date(document.SearchFrm.endDate.value)){
alert ("Start Date is greater");
}

Any tips is extremely appreciated,
Maral

[acoder]

Take the values and use split("-") to split the string into an array, then use setFullYear to set the date - see link.

[maralfarshadi]

Take the values and use split("-") to split the string into an array, then use setFullYear to set the date - see link.

Thank you for your advice.
Maral

[acoder]

You're welcome. Let us know if you hit any problems. Good luck!

[maralfarshadi]

Hi

Appreciate your help and advice with the problem I have faced. My code is as follows:

function Compare() {
 
    var StartDateSt=document.SearchFrm.startDate.value;
    var EndDateSt=document.SearchFrm.endDate.value;
 
    StartDateSt = StartDateSt.split("-");
    EndDateSt = EndDateSt.split("-");
 
    var StartDate=new Date();
    StartDate.setFullYear(StartDateSt);
 
    var EndDate=new Date();
    EndDate.setFullYear(EndDateSt);
 
   alert(EndDate);
   alert(StartDate);
 
}

As the code is run, the two alert boxes return NaN.


Trying to solve the problem in a different way, this time I let the user enter the date the usual way dd/mm/yyyy and use something like :

    var StartDate = new Date(StartDateSt);
    var StartDateYear = StartDate.getYear();
    var StartDateMonth = StartDate.getMonth();
    var StartDateDay = StartDate.getDate();  

and then connect the different parts through "-". The problem I face here is that, the entered date in the textbox of my Web page is only processed correctly if it is entered as mm/dd/yyyy; Is this the default setting of dates in Javascript?

How can I change the date format so the user can enter it as dd/mm/yyyy?


Thank you in advance
Maral

[acoder]

StartDate.setFullYear(StartDateSt);

should be

StartDate.setFullYear(StartDateSt[0],StartDateSt[1],StartDateSt[2]);