September 2017
Beginner
666 pages
11h 35m
English
Content preview from JavaScript: Novice to Ninja, 2nd Edition
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Chapter 10: Testing and Debugging
Errors and bugs are a fact of life in programming ― they will always be there. A ninja programmer will try to do everything to minimize errors occurring, and find ways to identify and deal with them quickly.
In this chapter, we’ll cover the following topics:
Errors, exceptions, and warnings
The importance of testing and debugging
Strict mode
Debugging in the browser
Error objects
Throwing exceptions
Exception handling
Testing frameworks
Our project ― we'll add some log messages and tests to the Quiz Ninja application
Errors, Exceptions, and Warnings
Errors are caused when something goes wrong in a program. They are usually caused by one of the following:
System error ― there’s a problem with the ...
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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.