How do I convert an integer to a float in JavaScript?

Question

I've got an integer (e.g. 12), and I want to convert it to a floating point number, with a specified number of decimal places.

Draft

function intToFloat(num, decimal) { [code goes here] } intToFloat(12, 1) // returns 12.0 intToFloat(12, 2) // returns 12.00 // and so on… 

Answer 1

What you have is already a floating point number, they're all 64-bit floating point numbers in JavaScript.

To get decimal places when rendering it (as a string, for output), use .toFixed(), like this:

function intToFloat(num, decPlaces) { return num.toFixed(decPlaces); } 

You can test it out here (though I'd rename the function, given it's not an accurate description).