Working with Data in JavaScript

A lot of your time will be spent wrangling with data, and this wrangling often happens under the covers. This section shines some light on how to work with data and perform the essential tasks that are necessary for your apps to function.

CHAPTER 1

Custom Data (data-*) Attributes

Learn how to embed data into your page or application by using custom data attributes in HTML.
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CHAPTER 2

Working with Arrays

Learn how to perform common tasks such as declaring, adding, removing, and merging arrays in JavaScript.
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CHAPTER 3

All About JSON (aka JavaScript Object Notation)

Almost all communication on the web happens through JSON, so learn all about how to read it here!
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CHAPTER 4

Making HTTP Requests in JavaScript

Learn all about the XMLHttpRequest object and how it makes sending and receiving data a breeze!
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Storing Data Using Web Storage

Learn how to use local and session storage to easily store and retrieve data from your user's browser.
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CHAPTER 5

Displaying PHP Data in HTML

Learn how to use some JavaScript for some old-fashioned AJAX goodness to load and display some data from a PHP file.
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What we've learned so far doesn't really lend itself to some sweet examples that you can deconstruct and wow your friends with, but below are a few unsweet examples instead :P

example

Checking If A File Exists

Learn how to construct a HEAD request and easily figure out whether a file exists on the server or not.
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Customize Theme

Working with Data in JavaScript

Custom Data (data-*) Attributes

Working with Arrays

All About JSON (aka JavaScript Object Notation)

Making HTTP Requests in JavaScript

Storing Data Using Web Storage

Displaying PHP Data in HTML

Checking If A File Exists

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