Optional Use

use.swift

import Foundation

public extension Optional {
    func use(_ closure: (Wrapped) -> Void) {
        guard let unwrappedSelf = self else {
            return
        }
        closure(unwrappedSelf)
    }
}


var o: String? = nil

o.use {
    print($0)
}

o = "534"

o.use {
    print($0)
}