Question

I need help converting this date format.
Here are the date string I receive from a server, it can be M/DD/YYYY or M/D/YYYY or MM/D/YYYY or MM/DD/YYYY.

EDIT: Sorry, my bad. After the format above, there is additional string of time HH:MM:SS AM so the complete string I receive will be M/D/YYYY HH:MM:SS AM

My problem now is I use String.substring(x, y) to extract the date, month, and year.

So far I only managed to determine the location of “/” but I’m still thinking how to use it in the substring method.

var separators = [];
for(var b = 0, c = String.length; b < c; b++){
    if(String[b] === '/'){
        separators.push(b);
    }
}

I’m confused how to extract the date and month dynamically and then pad “0” in front of the single digit number, so I appreciate any helps. Thank you in advance.

Answer 1

var dt = "10/6/2012 12:34:56 AM".split(' '); 
dt = dt[0].split('/'); 

// dt[0] => month
// dt[1] => day
// dt[2] => year

it works with any of the above format – M/DD/YYYY or M/D/YYYY or MM/D/YYYY or MM/DD/YYYY – (and it’s easier than using substring)

then to add a pad to month and day just use slice() like so

dt[0] = ("0"+ dt[0]).slice(-2);
dt[1] = ("0"+ dt[1]).slice(-2);

and to get a padded data just re-join the array parts

dt = dt.join('/');

Example jsbin : http://jsbin.com/exodos/2/edit