Formatting a number with exactly two decimals in JavaScript

Question

I have this line of code which rounds my numbers to two decimal places. But I get numbers like this: 10.8, 2.4, etc. These are not my idea of two decimal places so how I can

Answer 1

Here's a simple one

function roundFloat(num,dec){
    var d = 1;
    for (var i=0; i

Use like alert(roundFloat(1.79209243929,4));

Jsfiddle