Working with number in JavaScript

Question

How could I do this?

1 -> 01
4 -> 04
9 -> 09
11 -> 11
22 -> 22

Thanks!

Using strings or octal numbers. Do you want this for sorting issues ? — mhitza, Mar 21 '11 at 18:51

score 0 · Answer 1 · answered Mar 21 '11 at 18:53

0

var result = myNumber.toString(10);
if(myint < 10)
{
  result = "0" + result;
}

answered Mar 21 '11 at 18:53

Luke

score 0 · Accepted Answer · edited May 23 '17 at 09:58

0

Almost a duplicate of 610406. The simple thing, if you only want to add a 0 to numbers less than 10 would be something like:

function formatNum(num) {
    if (num < 10) {
        return '0' + num;
    }

    return num + '';
}

edited May 23 '17 at 09:58

Community

answered Mar 21 '11 at 18:53

AlG

score 0 · Answer 3 · answered Mar 21 '11 at 18:54

0

var i = 9;
i = "0" + i;
i = i.substring(i.length - 2);

answered Mar 21 '11 at 18:54

amit_g

score 0 · Answer 4 · answered Mar 21 '11 at 18:54

If you want something flexible:

Number.prototype.pad = function(length){
    return (new Array(length - this.toString().length + 1)).join('0') + this;
}

var x = 6;
x.pad(2); // 06

or if you want the basic 2-digit only:

x<10 ? '0'+x : x

4 Answers4