Using the Swift if let with logical AND operator &&

Question

We know that we can use an if let statement as a shorthand to check for an optional nil then unwrap.

However, I want to combine that with another expression

Answer 1

I think your original proposition is not too bad. A (messier) alternative would be:

if ((window!.rootViewController as? UITabBarController)?.viewControllers.count ?? 0) > 0 {
    println("do stuff")
}