Forms Designer Forum

Here's my code:

var calcDate = new Date();

var Month = calcDate.getMonth() + 1;

var Day = calcDate.getDate() + 3;

var Year = calcDate.getFullYear();

var vStartDate = Month + "/" + Day + "/" + Year;

fd.field('DueDate').value(vStartDate);


fd.onsubmit(function()

{

if (fd.field('DueDate').value() < vStartDate)

{

alert("Please enter a Due Date that is 3 or more days in the future.");

return false;

}

else

{

return true;

}

})



This was working, but recently stopped working a couple of days ago.


Scenario:

On 12/29/2014, users opened the form and tried to submit a form for 1/4/2015 (at least 3 days later, which is correct.)
The alert "Please enter a Due Date that is 3 or more days in the future" pops up (which 1/4/2015 obviously meets that criteria).
Is this because it's the NEW YEAR (2015)? Or is it because it's the END of the MONTH? (My code above pre-populates a date of 12/32/2014, which obviously isn't possible.


Hope that question makes sense. Thank you!

Hi,

Yes, you prepopulated the field with an incorrect value. Use the following code to get the current date plus 3 days:

Thank you SO much! This works perfectly!!! I really really appreciate it.


Just for my own understanding: the reason why your code works and mine doesn't is because the "setDate" method understands that month days that are > 31 aren't possible, so it parses out the correct date for the next month? Is that correct?

I'm guessing when I did calDate.getDate() + 3, I set the date to a literal number without any method that could parse the number and understand that a day of "32" or greater "doesn't make sense."

Thanks so much Dmitry. Really hoping long-term that I start to grasp JavaScript in a way that you do. You're really good.

One more question.

After testing, the code you provided works, but if a date from the previous year (2014) is selected, then the code no longer recognizes the previous year as "less than" the current year. (For Example: 12/25/2014 is not less than 1/5/2015.


I've fixed this with the following code:


fd.onsubmit(function()

{

var x = fd.field('DueDate').value();

var cYear = x.slice(-4);

if (fd.field('DueDate').value() < vStartDate || cYear == 2014)

{

alert("Please enter a Due Date that is 3 or more days in the future.");

return false;

}

else {return true;}

});


It seems more of a workaround than a true solution. I was just wondering why the below logic wouldn't work for previous years as well:


if (fd.field('DueDate').value() < vStartDate


Thanks Dmitry.

Hi,

You shouldn't compare dates as strings. First, you need to transform them into Date objects:

Is there a way to compare the new Date() objects directly?



Can you somehow do

New date() + get.date() + 3

- (substract)

New date()?

Hi,

Yes, you can compare Date objects directly but first you need to convert field value to the Date object as I demonstrated above.