Search icon CANCEL
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Learning Jupyter 5

You're reading from   Learning Jupyter 5 Explore interactive computing using Python, Java, JavaScript, R, Julia, and JupyterLab

Arrow left icon
Product type Paperback
Published in Aug 2018
Publisher
ISBN-13 9781789137408
Length 282 pages
Edition 2nd Edition
Languages
Tools
Arrow right icon
Author (1):
Arrow left icon
Dan Toomey Dan Toomey
Author Profile Icon Dan Toomey
Dan Toomey
Arrow right icon
View More author details
Toc

Table of Contents (14) Chapters Close

Preface 1. Introduction to Jupyter FREE CHAPTER 2. Jupyter Python Scripting 3. Jupyter R Scripting 4. Jupyter Julia Scripting 5. Jupyter Java Coding 6. Jupyter JavaScript Coding 7. Jupyter Scala 8. Jupyter and Big Data 9. Interactive Widgets 10. Sharing and Converting Jupyter Notebooks 11. Multiuser Jupyter Notebooks 12. What's Next? 13. Other Books You May Enjoy

JavaScript Hello World Jupyter Notebook


Once installed, we can attempt the first JavaScript Notebook by clicking on the New menu and selecting JavaScript. We will name the NotebookHello, World! and put the following lines in this script:

var msg = "Hello, World!" 
console.log(msg) 

This script sets a variable and displays the contents of the variable. After entering the script and running (Cell | Run All), we will end up with a Notebook screen that looks like the following screenshot:

We should point out some of the highlights of this page:

  • We have the now-familiar language logo in the upper-right corner that depicts the type of script in use
  • There is output from every line of the Notebook
  • More importantly, we can see the true output of the Notebook (following line one) where the string is echoed
  • Otherwise, the Notebook looks as familiar as the other types we have seen

If we look at the contents of the Notebook on disk, we can see similar results as well:

{ 
  "cells": [ 
    <<same format...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime