3 decimal places in javascript

Question

I'm new to programming and I am starting with javascritpt, I have this code and I want the printed values to be to 3 decimal places.

<script>
for (var a = 3, b = 2; b >= 0; a ++, b --) {
document.writeln (a + " / " + b + " = " + a/b + "<br />")
}
</script>

I tried:

var a=a.toFixed(3);
var b=b.toFixed(3);

but it doesn't make a difference. The fist line comes out as 4 / 3 = 1.3333333333333333 instead of 1.333 which is what I want.

Possible duplicate of [Formatting a number with exactly two decimals in JavaScript](http://stackoverflow.com/questions/1726630/formatting-a-number-with-exactly-two-decimals-in-javascript) — devRicher, Jan 02 '17 at 22:02

score 3 · Answer 1 · answered Apr 24 '13 at 11:38

3

Have you tried:

document.writeln (a + " / " + b + " = " + (a/b).toFixed(3) + "<br />")

answered Apr 24 '13 at 11:38

Chris Dixon

9,147
5
36
68

score 1 · Answer 2 · 2013-04-24T11:48:42.143

1

You can use .toFixed(3) at the time you divide. Like (a/b).toFixed(3)

edited Apr 24 '13 at 11:48

answered Apr 24 '13 at 11:39

score 0 · Answer 3 · answered Apr 24 '13 at 11:41

0

Try this:

<script>
for (var a = 3, b = 2; b >= 0; a ++, b --) {
    var c = (a/b).toFixed(3);
    document.writeln (a + " / " + b + " = " + c + "<br />")
}
</script>

answered Apr 24 '13 at 11:41

sumon

742
1
11
33

3 decimal places in javascript

3 Answers3