Kuidas võivad sulud haarata value type tüüpi väärtusi?

Closures capture a copy of the value of type value at the moment of their definition. If the value of type value changes after the closure is defined, inside the closure its original copy will be available, not the modified value.

var counter = 0

let incrementCounter = { // The closure captures a copy of `counter` (0)
    counter += 1
    print(counter)
}

incrementCounter() // Prints 1
counter = 10 // We change the original variable `counter`

incrementCounter() // Prints 2. The closure works with the captured copy, not the changed variable.

When using @escaping with value type closures, it is important to consider this copying mechanism, as the value may change before the closure is called.