January 2001
Beginner
312 pages
6h 4m
English
Content preview from JavaScript™ 1.5 by ExampleBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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The return Statement
One statement you didn't look at in the previous chapter is the return statement. (Well, in fact there is one other—the with statement—but you'll come across that in the next chapter!)
The return statement was omitted from the previous chapter because it deals specifically with functions and at that time, you hadn't discovered functions. So, let's take a look at it now.
You've seen how parameters can be used to pass data from a referring function to a receiving function so that it can work on the data; well, there is a way to pass the result back. This is done with the return statement:
<html> <head> <title>A Simple Page</title> <script language="JavaScript"> <!-- Cloaking device on! function calcAvg() { var inpNum1 = prompt("Enter ...Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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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.Julian F.
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.