"Yes, you often need to explicitly declare the type. Yes, you need that = sign. And Yes, you need the parentheses after the closing brace."

Lazy Closures.swift

// Lazy Closures
class Person {
    
    let name: String
    
    init(name: String) {
        self.name = name
    }
    
    // Remember to add the closing brace '()' at the end of the closure declaration
    lazy var reversedName = {
        return "\(self.name) backwards is: \(String(self.name.reversed()))"
    }()
}

let person = Person(name: "SomeName")
let reversedName = person.reversedName
print(reversedName)


/*

“Swift is smart enough to realize what’s going on, and no reference cycle will be created.

Under the hood, any closure like this – one that is immediately applied – is considered to be “non-escaping”, which in our situation means it won’t be used anywhere else. That is, this closure can’t be stored as a property and called later on. Not only does this automatically ensure self is considered to be unowned, but it also enables the Swift compiler to make some extra optimizations because it has more information about the closure.

*/