JavaScript and JSON Essentials
By Sai Srinivas Sriparasa
Publisher: Packt Publishing
Final Release Date: October 2013
Pages: 120

In Detail

The exchange of data over the Internet has been carried out since its inception. Delimiter-separated lists such as CSV and tag-separated languages such as XML are very popular, yet they are considered to be verbose by a section of developers. JSON (JavaScript Object Notation) is a lightweight text-based code to create objects to transfer data over the Internet. It is a data exchange format that is human-readable (like XML, but without the markup around your actual payload) and its syntax is a subset of the JavaScript language that was standardized in 1999.

JavaScript and JSON Essentials is a step-by-step guide that will introduce you to JSON and help you understand how the lightweight JSON data format can be used in different ways either to store data locally or to transfer data over the Internet. This book will teach you how to use JSON effectively with JavaScript.

This book begins with a brief refresher course on JavaScript before taking you through how JSON data can be transferred via synchronous, asynchronous, and cross-domain asynchronous HTTP calls. JSON is not just about data transfer; this book throws light on the alternate implementations of JSON as well.

You will learn the data types that JavaScript uses and how those data types can be used in JSON. You will go through the concepts of how to create, update, parse, and delete a JSON object. You will also look at the different techniques of loading a JSON file onto a web page, how to use jQuery to traverse through an object, and how to perform access operations. You will also go over a few resources that will make debugging JSON quick and easy.


The book follows a tutorial-based approach and will teach you how to work with JSON tools, design JSON objects, and how to use different techniques to handle JSON data.

Who this book is for

This book is a great resource for developers who would like to learn more about JSON and who wish to apply it in their own projects. It will be useful to have some prior knowledge of HTML and JavaScript to help you understand the concepts covered in this book. Some familiarity with a server-side language such as PHP, C#, or Python would also be beneficial, but this is not compulsory.

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(3 of 5 customers found this review helpful)


Good and fast intro into JSON

By maro

from Bratislava

About Me Developer

Verified Reviewer


  • Accurate
  • Easy to understand
  • Helpful examples


    Best Uses

    • Intermediate
    • Novice

    Comments about oreilly JavaScript and JSON Essentials:

    Javascript and JSON Essentials is a 108 page hand-book covering JSON
    basic usage with `code` examples.

    The book is devided into 8 chapters:

    1. Javascripts basic
    2. Getting started with JSON
    3. Working with real-time JSON
    4. AJAX calls with JSON data
    5. Cross domain async requests
    6. Tutorial - building a carousel application with JSON
    7. Alternative implementation of JSON
    8. debugging JSON

    The book starts with javascript basics and comparision between
    javascript and JSON objects with overview of accepted datatypes for

    Chapter 3 provides some code snippets for basic manipulation of

    Chapters 4 and 5 are the core of the book, as they covers practical
    code snippets with JSON data:

    - XMLHttp request
    - parsing JSON with $getJSON
    - get and post AJAX calls with JSON data
    - JSONP

    The last chapters describes some sample carousel application using JSON
    and tools for debugging JSON.

    This book can be a good read for a reader who has some basic
    knowledge about JSON and javascript and is looking for a short
    hands-on guide with practical code snippets with JSON usage.

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