April 2024
Beginner
192 pages
3h 21m
English
Content preview from JavaScript Essentials For Dummies
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Chapter 1
JavaScript: The Big Picture
IN THIS CHAPTER
Getting a feel for programming in general, and JavaScript in particular
Checking out the tools you need to get coding
Adding comments to your JavaScript code
Storing your code in a separate JavaScript file
In this chapter, you explore some useful JavaScript basics. Don’t worry if you’ve never programmed before. I take you through everything you need to know, step-by-step, nice and easy. As you’re about to find out, it really is fun to program.
Adding JavaScript Code to a Web Page
Okay, it’s time to roll up your sleeves, crack your knuckles, and start coding. This section describes the standard procedure for constructing and testing a script and takes you through a couple of examples.
The <script> tag
The basic container for a script is, naturally enough, the HTML <script> tag and its associated </script> end tag:
<script> JavaScript statements go here</script>
Where do you put the <script> tag?
With certain exceptions, it doesn’t matter a great deal where you put your <script> tag. Some people place the tag between the ...
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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.
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.