Weekly Swift articles, podcasts and tips by John Sundell.

Making weak or lazy properties readonly

Published on 28 Jul 2017
Basics article available: Properties

If you have a property in Swift that needs to be weak or lazy, you can still make it readonly by using private(set).

class Node {
    private(set) weak var parent: Node?
    private(set) lazy var children = [Node]()

    func add(child: Node) {
        children.append(child)
        child.parent = self
    }
}

Support Swift by Sundell by checking out this sponsor:

Magic Lasso Adblock
Magic Lasso Adblock

Magic Lasso Adblock: Block ads, trackers and pop-ups on your iPhone, iPad and Mac. Magic Lasso Adblock provides a 2.0x speed increase on common websites, improves your privacy by removing ad trackers and works with Safari across all devices. It’s as if Apple themselves had designed an ad blocker. Download for free today.