Swift: Return the product of the even values in a dictionary where the values are inside of strings

EvenValues.swift

// I publicly share any answers to "coding challenges" I receive as a part of the interview process
// copy/paste this into an Xcode playground or the code challenge repl of choice

let values =  [5:"4", 6:"5", 2:"6", nil:nil, 4:"5", 3:"apple"]

func evenProduct(_ numbers: [Int?: String?]) -> Int {
    return Array(numbers.values)
        .compactMap{$0} // remove nil values and unwrap optionals
        .compactMap{Int($0)} // remove strings that return nil when converted to an Int, leaving an array of Ints
        .filter{$0 % 2 == 0} // even numbers
        .reduce(1, *) // product
}

print(evenProduct(values))

// 24

See comments in gist for instructions