July 2016
Beginner
416 pages
8h 55m
English
Content preview from JavaScript Absolute Beginner’s Guide
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20. Immediately Invoked Function Expressions
In This Chapter
• Understand anonymous functions
• Learn how to invoke a block of code immediately
• Take our knowledge of scope further by creating data that is private
We are going to take a slight detour from our coverage of objects to focus on something important that can only properly make sense at this point. You’ll see why in a few moments when we walk through some examples. Anyway, by now, you probably know enough functions in JavaScript to be dangerously productive. Functions allow you to group statements together. If you give your function a name, you can re-use those grouped statements a whole bunch of times, as in the example that follows:
function areYouLucky ...
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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.