March 2021
Beginner
404 pages
5h 47m
English
Content preview from Learn to Code With JavaScript
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Chapter 7: Going Loopy
Computers are great at carrying out repetitive tasks over and over again. They never get bored and will follow the instructions exactly every time. Loops are a way of getting a program to repeat a piece of code according to certain conditions.
In this chapter, we’ll cover:
- what a loop is
- infinite loops
- while loops
- do–while loops
- for loops
- nested loops
What’s a Loop?
A loop is a piece of code that will continue to run until a certain condition is met.
To illustrate this, here’s a diagram that shows the countdown to a rocket blastoff as a loop.
As you can see, we start at 10, say the number out loud, subtract one from the ...
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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.