Skip to Content
Learning JavaScript
book

Learning JavaScript

by Shelley Powers
October 2006
Beginner to intermediate
352 pages
9h 33m
English
O'Reilly Media, Inc.
Content preview from Learning JavaScript

Questions

  1. In the following, add parentheses to the expression so that it evaluates to 8:

  2. var valA = 37;
    var valB = 3;
    var valC = 18;
    var resultOfComp = valA - valB % 3 / 2 * 4 + valC - 3;
  3. Using a switch statement, test an expression for a value of one, two, or three, and set a variable to OK if the expression is one or two; OK2 if the expression is three; and NONE if it doesn’t match any.

  4. You have three variables, varOne, varTwo, and varThree. How would you test all three such that a block of code is processed only if varOne is 33, varTwo is less than or equal to 100, but varThree is greater than 0?

  5. Execute a loop and print out every number between 10 and 20.

  6. Now do the same counting backward.

Answers are provided in the appendix.

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

Learning JavaScript, 2nd Edition

Learning JavaScript, 2nd Edition

Shelley Powers

Publisher Resources

ISBN: 0596527462Catalog PageErrata