Book Image

HTML5 Web Application Development By Example : Beginner's guide

By : Jody Gustafson
Book Image

HTML5 Web Application Development By Example : Beginner's guide

By: Jody Gustafson

Overview of this book

HTML5's new features have made it a real application development platform with widespread adoption throughout the industry for this purpose. Being able to create one application that can run on virtually any device from phone to desktop has made it the first choice among developers. Although JavaScript has been around for a while now, it wasn't until the introduction of HTML5 that we have been able to create dynamic, feature-rich applications rivaling those written for the desktop. HTML5 Web Application Development By Example will give you the knowledge you need to build rich, interactive web applications from the ground up, incorporating the most popular HTML5 and CSS3 features available right now. This book is full of tips, tools, and example applications that will get you started writing your own applications today. HTML5 Web Application Development By Example shows you how to write web applications using the most popular HTML5 and CSS3 features. This book is a practical, hands-on guide with numerous real-world and relevant examples. You will learn how to use local storage to save an application's state and incorporate CSS3 to make it look great. You will also learn how to use custom data attributes to implement data binding. We'll use the new Canvas API to create a drawing application, then use the Audio API to create a virtual piano, before turning it all into a game. The time to start using HTML5 is now. And HTML5 Web Application Development by Example will give you the tips and know-how to get started.
Table of Contents (18 chapters)
HTML5 Web Application Development By Example Beginner's guide
Credits
About the Author
About the Reviewer
www.PacktPub.com
Preface
Index

HTML5 audio overview


Before we start writing our piano application, we need to learn the basics of how to use HTML5 audio. So let's start with an overview of the <audio> element and its API.

The HTML5 <audio> element

The HTML5 <audio> element is used to define an audio file to play in your web page or application. The audio element can have visible controls on the page or it can remain hidden and be controlled from JavaScript. Here are a few of the most useful attributes it supports:

  • src: URL of the audio file to load.

  • autoplay: Used to specify that the file should start playing as soon as it's loaded.

  • controls: Tells the browser to display audio controls on the page. Otherwise, nothing is displayed for the element.

  • loop: Specifies that the audio will play in a loop.

  • muted: Specifies that the audio will be muted.

  • preload: Defines how the audio file is loaded.

  • auto: Loads the audio file when the page loads. This is the default.

  • none: Does not preload the file, waits until...