I also do some iOS Swift development. I must say I kind of miss the

if let

construct from Swift. I'd love to be able to do something like this in Kotlin:

class Foo {
    var bar: String? = //...
    var foo: String? = //...

    fun someMethod() {
        if (val bar = bar, val foo = foo) {
            // bar and foo are now non-optional
        }
    }
}