May 2018
Beginner
384 pages
9h 5m
English
Content preview from Helping Kids with Coding For Dummies
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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.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.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.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.
Chapter 13
Fixing Problems by Debugging
IN THIS CHAPTER
Finding and reading error messages
Tracking down common bugs
Debugging strategies
Bugs have been causing coders headaches and frustration for decades. Coders spend upwards of 50 percent of their time debugging — fixing errors in their code, and not just writing code! This is part of what makes coding so “hard.” It’s not impossible to figure out — it just takes persistence when the computer is telling you you’re wrong.
You can encounter two different kinds of coding bugs: syntax bugs and semantic bugs. Syntax bugs are ones where you have written something incorrectly. Maybe you spelled a variable wrong, or you forgot a semicolon at the end of your line of code. These bugs are often easy to fix and result in your programming environment displaying an error message to you. Semantic bugs are ones where your logic is incorrect. For example, you’re iterating through a list of five numbers and you try to access the sixth element, or you’re checking to see whether variable1 is less than variable2 in an if-then statement, but you accidentally write variable1 > variable2. These bugs are often harder to find because they require you to ...
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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.