Multiplying variables and doubles in swift

Question

I\'m a designer looking into learning Swift and I\'m a beginner.

I have no experience whatsoever.

I\'m trying to create a tip calculator using basic code in

Answer 1

You just have to cast your int variable to Double as below:

    var billBeforeTax = 100
    var taxPercentage = 0.12
    var tax = Double(billBeforeTax) * taxPercentage