Swift 'if let' statement equivalent in Kotlin

Question

In Kotlin is there an equivalent to the Swift code below?

if let a = b.val {

} else {

}

Answer 1

Here's how to only execute code when name is not null:

var name: String? = null
name?.let { nameUnwrapp ->
    println(nameUnwrapp)  // not printed because name was null
}
name = "Alex"
name?.let { nameUnwrapp ->
    println(nameUnwrapp)  // printed "Alex"
}