Question

I’ve got a problem passing off date information to another site because they still require two digit dates even for the first nine days of the month. I’ve gotten 90% of the way using the code from the SO page for set select list to current date using Jquery. That moves the months and days from 1-31 and 1-12. I need the output to be from 01-31 and 01-12.

The current situation:

function ragequit() {
    var today = new Date();
    var daym = today.getDate();
    var monthm = today.getMonth();
    $('#StartMonth option[value=' + (monthm)  + ']').prop('selected',true);
    $('#StartDay option[value=' + (daym) + ']').prop('selected',true);
    $('#EndMonth option[value=' + (monthm+1)  + ']').prop('selected',true);
    $('#EndDay option[value=' + (daym+1)  + ']').prop('selected',true);
}

It is calling the month perfectly because this is December. Also had to add m to each of the values so that it doesn’t compete with another tool that increments the date when the start date is changed.

Simply put, I have 12 7 2011 – I need 12 07 2011.

Answer 1

What you need is a function to pad a string with leading zeros, like this:

function pad(num, size) {
    var s = num+"";
    while (s.length < size) s = "0" + s;
    return s;
}

Then you can use this to add leading zeros to your dates:

function ragequit() {
    var today = new Date();
    var daym = today.getDate();
    var monthm = today.getMonth();
    $('#StartMonth option[value=' + pad(monthm,2)  + ']').prop('selected',true);
    $('#StartDay option[value=' + pad(daym,2) + ']').prop('selected',true);
    $('#EndMonth option[value=' + pad(monthm+1,2)  + ']').prop('selected',true);
    $('#EndDay option[value=' + pad(daym+1,2)  + ']').prop('selected',true);
}