September 2018
Beginner
360 pages
9h 28m
English
Content preview from Get Programming with Go
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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.
Lesson 4. Variable scope
After reading lesson 4, you’ll be able to
- Know the benefits of variable scope
- Use a shorter way to declare variables
- See how variable scoping interacts with for, if, and switch
- Know when to use a wide or narrow scope
In the course of running a program, many variables are used briefly and then discarded. This is facilitated by the scoping rules of the language.
Consider this
How many things can you keep in your head at once?
It has been suggested that our short-term memory is limited to about seven items, with a seven-digit phone number being an excellent example.
Computers can store many values in their short-term or Random Access Memory (RAM), but remember that code is read not only by computers, but ...
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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.
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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.