How to write "decToBin" in Swift?

Question

I have been looking for an equivalent to JavaScripts decToBin in Swift 2. I have not been able to find anything. I would like to replicate the following JavaScript code code:

var max = 511;
var maxlength = decToBin(max).toString().length;

Answer 1

You can use String to achieve this:

let max       = 511
let maxlength = String(max, radix: 2).characters.count

You can find more in Apple String documentation