JavaScript and JSON Essentials. If you fancy a less verbose data format than CSV or XML, then JSON could be for you. This tutorial will teach you about using JSON with JavaScript for effective local storage or Internet transfers - Helion

ebook

Autor: Sai S Sriparasa
Tytuł oryginału: JavaScript and JSON Essentials. If you fancy a less verbose data format than CSV or XML, then JSON could be for you. This tutorial will teach you about using JSON with JavaScript for effective local storage or Internet transfers.
ISBN: 9781783286041
stron: 120, Format: ebook
Data wydania: 2013-10-24
Księgarnia: Helion

Cena książki: 94,99 zł

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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.

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Spis treści

JavaScript and JSON Essentials. If you fancy a less verbose data format than CSV or XML, then JSON could be for you. This tutorial will teach you about using JSON with JavaScript for effective local storage or Internet transfers eBook -- spis treści

JavaScript and JSON Essentials
- Table of Contents
- JavaScript and JSON Essentials
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
  - Support files, eBooks, discount offers and more
  - Why Subscribe?
  - Free Access for Packt account holders
- Preface
  - What this book covers
  - What you need for this book
  - Who this book is for
  - Conventions
  - Reader feedback
  - Customer support
    - Downloading the example code
    - Errata
    - Piracy
    - Questions
- 1. JavaScript Basics
  - Variables in JavaScript
  - Arrays
  - Objects
  - The Carousel application
  - Summary
- 2. Getting Started with JSON
  - The Hello World program with JSON
  - Datatypes in JSON
  - Languages that support JSON
    - PHP
    - Python
  - Summary
- 3. Working with Real-time JSON
  - Accessing objects in JSON
  - Performing complex operations
  - Modifying JSON
  - Summary
- 4. AJAX Calls with JSON Data
  - Requirements for AJAX
  - Hosting JSON
  - Making your first AJAX call
  - Parsing JSON data
  - Summary
- 5. Cross-domain Asynchronous Requests
  - Making GET and POST AJAX calls with JSON data
  - The problem with cross-domain AJAX calls
  - Introduction to JSONP
  - Implementing JSONP
  - Summary
- 6. Building the Carousel Application
  - Setting up the application
  - Building the JSON file for the Carousel application
  - Creating the Carousel application with jQuery Cycle
  - Summary
- 7. Alternate Implementations of JSON
  - Dependency management
  - JSON for storing metadata
  - Comparisons with YAML
  - Summary
- 8. Debugging JSON
  - Using the developer tools
  - Validating JSON
  - Formatting JSON
  - Summary
- Index