Skip to Content
Eloquent JavaScript, 4th Edition
book

Eloquent JavaScript, 4th Edition

by Marijn Haverbeke
November 2024
Beginner to intermediate
456 pages
11h 5m
English
No Starch Press
Content preview from Eloquent JavaScript, 4th Edition

APPENDIX: EXERCISE HINTS

The hints below might help when you are stuck with one of the exercises in this book. They don’t give away the entire solution, but rather try to help you find it yourself.

Chapter 2: Program Structure

Looping a Triangle

You can start with a program that prints out the numbers 1 to 7, which you can derive by making a few modifications to the even number printing example given earlier in the chapter, where the for loop was introduced.

Now consider the equivalence between numbers and strings of hash characters. You can go from 1 to 2 by adding 1 (+= 1). You can go from “#” to “##” by adding a character (+= “#”). Thus, your solution can closely follow the number-printing program.

FizzBuzz

Going over the numbers is clearly ...

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,
and much more.

Read now

Unlock full access

More than 5,000 organizations count on O’Reilly

AirBnbBlueOriginElectronic ArtsHomeDepotNasdaqRakutenTata Consultancy Services

QuotationMarkO’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.
Head of Cybersecurity
QuotationMarkI 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.
Field Engineer
QuotationMarkI’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.
Data Platform Tech Lead
QuotationMarkI'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.
Mark W.
Embedded Software Engineer

You might also like

JavaScript: The Definitive Guide, 7th Edition

JavaScript: The Definitive Guide, 7th Edition

David Flanagan

Publisher Resources

ISBN: 9781098182502Errata Page