Quiz · Errors · lesson 5 of 7

Quiz — try?

Question 1 of 2

What does the program print?

SWIFT

enum ParseError: Error {
    case badFormat
}
func parse(_ text: String) throws -> Int {
    guard let n = Int(text) else {
        throw ParseError.badFormat
    }
    return n
}
let a = (try? parse("8")) ?? -1
let b = (try? parse("8x")) ?? -1
print(a, b)