December 2016
Intermediate to advanced
416 pages
15h 21m
English
Content preview from iOS Programming: The Big Nerd Ranch Guide, 6th Edition
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Debugging Basics
The simplest debugging uses the console. Interpreting the information provided in the console when an application crashes or intentionally logging information to the console allows you to observe and zero in on your code’s failures. Let’s look at some examples of how the console can support your quest for bug-free code.
Interpreting console messages
Time to add some mayhem to the Buggy project. Suppose that after considering the UI for a while, you decide that a switch would be a better control than a button. Open ViewController.swift and make the following changes to the buttonTapped(_:) method.
@IBAction func buttonTapped(_ sender: UIButton) {@IBAction func switchToggled(_ sender: UISwitch) { print("Called ...
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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.