May 2018
Beginner
848 pages
17h 29m
English
Content preview from Web Coding & Development All-in-One 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 2
Understanding Variables
IN THIS CHAPTER
Getting your head around variables
Assigning names to variables
Introducing JavaScript data types
Figuring out numbers
Stringing strings together
You should imagine variables as tentacles, rather than boxes. They do not contain values; they grasp them.
— MARIJN HAVERBEKE
You might have heard about — or perhaps even know — people who, through mishap or misfortune, have lost the ability to retain short-term memories. If you introduce yourself to one of these poor souls, he’ll be asking you your name again five minutes later. These unfortunates live in a perpetual present, seeing the world anew every minute of every day.
What, I’m sure you’re asking yourself by now, can any of the above possibly have to do with coding? Just that, by default, your JavaScript programs also live a life without short-term memory. The web browser executes your code one statement at a time, until there are no more statements left to process. It all happens ...
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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.