November 2016
Intermediate to advanced
480 pages
14h 42m
English
Content preview from Swift Programming: The Big Nerd Ranch Guide
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Property Observers
Swift provides an interesting feature called property observation. Property observers watch for and respond to changes in a given property. Property observation is available to any stored property that you define and is also available to any property that you inherit. You cannot use property observers with computed properties that you define. (But you have full control over the definition of a computed property’s setter and getter and can respond to changes there.)
Imagine that the citizens of your beleaguered town are getting restless. They demand that the mayor do something to protect them from the monstrous pox patrolling the countryside. The mayor’s first action is to track the attacks on the townspeople. Property ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.