Get month in mm format in javascript

Question

How do I retrieve the month from the current date in mm format? (i.e. \"05\")

This is my current code:

var currentDate = new Date();
va         


        

Answer 1

In order for the accepted answer to return a string consistently, it should be:

if(currentMonth < 10) {
    currentMonth = '0' + currentMonth;
} else {
    currentMonth = '' + currentMonth;
}

Or:

currentMonth = (currentMonth < 10 ? '0' : '') + currentMonth;

Just for funsies, here's a version without a conditional:

currentMonth = ('0' + currentMonth).slice(-2);

Edit: switched to slice, per Gert G's answer, credit where credit is due; substr works too, I didn't realize it accepts a negative start argument