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 5
Harnessing the Power of Functions
IN THIS CHAPTER
Getting to know JavaScript functions
Creating and using custom functions
Passing and returning function values
Understanding recursive functions
Introducing JavaScript’s built-in functions
To iterate is human, to recurse divine.
— L. PETER DEUTSCH
As I demonstrate throughout this book, JavaScript comes with a huge number of built-in features that perform specific tasks. For example, something called the Math object has a built-in method for calculating the square root of a number. Similarly, a feature called the String object has a ready-made method for converting a string value to all lowercase letters.
There are, in fact, hundreds of these ready-to-roll features that perform tasks that range from the indispensable to the obscure. But JavaScript can't possibly do everything that you’d like or need it to do. What happens if your web development project requires a particular task or calculation that isn’t part of the JavaScript ...
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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.