Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
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

Node.js JSON handling


In this example, we will load a JSON dataset and perform some standard manipulations on the data. I am referencing the list of FORD Models from http://www.carqueryapi.com/api/0.3/?callback=?&cmd=getModels&make=ford. I can't reference this directly, as it is not a flat file, but an API call. Therefore, I downloaded the data into a local file called fords.json. Also, the output from the API call wraps the JSON like so: ?(json);. This would have to be removed before parsing.

The scripting we will use is as follows. In the script, JSON is a built-in package of Node.js, so we can reference this package directly. The JSON package provides many of the standard tools that you need to handle your JSON files and objects.

Of interest here is the JSON file reader, which constructs a standard JavaScript array of objects. Attributes of each object can be referenced by name, for example, model.model_name:

//load the JSON dataset 
//http://www.carqueryapi.com/api/0.3/?callback...
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
Banner background image