There are two input fields of type text to write a start date and end date in format mm/dd/yyy. I need a JavaScript function to check that the date range interval between those entered dates does not exceed 14 days. And the maximum date should be the current date. Is there a plugin or a fast solution for this? I tried to use the jQuery UI datepicker which would work fine, but I have a custom GetElementByClassName function which conflicts with jQuery.
Thank you.
The following snippets should give you some ideas.
<script>
var date1 = '01/14/2011';
var date2 = '01/25/2011';
// calculate the number of days between date1 and date2
var daysBetween = new Date(date2).getTime() - new Date(date1).getTime();
alert('days between = ' + daysBetween / 86400000);
// check date3 against current date
var now = new Date();
var date3 = new Date('04/20/2011');
if (date3 < now)
alert('date3 is less than current date');
</script>
So to combine into a function, you could do something like this:
<script>
function checkDates(date1, date2) {
// calculate the number of days between date1 and date2
var daysBetween = (new Date(date2).getTime() - new Date(date1).getTime()) / 86400000;
if (daysBetween > 14)
return false;
var now = new Date();
if (date2 < now)
return false;
return true;
}
I worked on this problem and I found focusout function to be the best solution that match my requirement. Jquery code:
$("#datefield").focusout(function () {
date = $("#datefield").val();
if (date > "2021-06-30" || date < "2020-07-01") {
alert("Please enter a valid date.");
$("#datefield").val("");
}
});
