Javascript Decimals

Question

How can I convert a integer type to a double/float type so it shows decimal points? For instance if I want to convert a number to a money format:

5 would turn into 5.00 4.3 would turn into 4.30

Does javascript have something I can use to do this kind of conversion?

http://stackoverflow.com/questions/149055/how-can-i-format-numbers-as-money-in-javascript — user113716, Sep 09 '11 at 23:39
the decimal 4.3 is identical to the decimal 4.30. Are you wanting a formatted decimal or a formatted string? — Joseph Marikle, Sep 09 '11 at 23:40

score 3 · Accepted Answer · answered Sep 09 '11 at 23:40

3

You want toFixed:

var a = 5;
a.toFixed(2); // '5.00'
4.3.toFixed(2); // '4.30'

answered Sep 09 '11 at 23:40

Joe

so there is not types in javascript? I can't convert to double or float? – Howdy_McGee Sep 09 '11 at 23:41
parseFloat(string), would get you back to a Number, but no individual Number types like int, float, double, byte, etc – Joe Sep 09 '11 at 23:42

score 1 · Answer 2 · answered Sep 09 '11 at 23:40

1

You can use toFixed(n), where n is the number of decimal places.

5 .toFixed(2);
//-> "5.00"

4.3 .toFixed(2);
//-> "4.30"

answered Sep 09 '11 at 23:40

Andy E

1

@IAbstract: I wouldn't really say that's relevant, since it would be a rare occasion where you would write it out like this. Normally, you would call `toFixed()` on a variable, otherwise you may as well just write the number as a string literal in the first place. – Andy E Sep 09 '11 at 23:45

2 Answers2