Javascript showing in dollars

Question

How would I display JavaScript output numbers in dollar format? I.E. $20.00 then $2,000.00 when the number gets larger. Ok so sample code.

if(this.getField("Account Name RequiredRow1").value !="") {
    event.value = 20;
}
else{
    event.value = "";
}

possible duplicate of [Convert to currency format](http://stackoverflow.com/questions/1718878/convert-to-currency-format) — Felix Kling, Jul 29 '11 at 13:43
So you want two decimal places, and thousands separators, and then prefix a `$` character. Divide and conquer, my friend; programming doesn't care about US dollars. — Lightness Races in Orbit, Oct 17 '12 at 02:22

score 3 · Answer 1 · answered Jul 29 '11 at 13:39

3

function formatCurrency(num) {
    num = isNaN(num) || num === '' || num === null ? 0.00 : num;
    return '$' + parseFloat(num).toFixed(2);
}

This is the easiest way

answered Jul 29 '11 at 13:39

Senad Meškin

But it doesn't satisfy the requirement for thousands separators. – Lightness Races in Orbit Oct 17 '12 at 02:23

score 2 · Accepted Answer · answered Jul 29 '11 at 13:53

2

Here's the function that I use.. Basically the same as @Senad's except it adds commas:

function(val) {
    var valString = val.toFixed(2).toString().replace(/\B(?=(?:\d{3})+(?!\d))/g, ",");
    return "$" + valString;
}

answered Jul 29 '11 at 13:53

Bobby D

2 Answers2