Hex to Decimal - Swift

Question

Sorry if this seems really simple, I just can't find it anywhere online.

I have a UInt8 in hex, I need to get it to a decimal. How do I achieve this in swift?

For example:

"ff"

Thanks

Answer 1

If you have a string representation, "ff", you can use UInt8(_:radix:):

let string = "ff"
if let value = UInt8(string, radix: 16) {
    print(value)
}

Answer 2

Try this code, It's work for me.

// Hex to decimal

let h2 = "ff"
let d4 = Int(h2, radix: 16)!
print(d4) 

Hope this is help for some one