Book Image

AMP: Building Accelerated Mobile Pages

By : Ruadhan O'Donoghue
Book Image

AMP: Building Accelerated Mobile Pages

By: Ruadhan O'Donoghue

Overview of this book

Google introduced the Accelerated Mobile Pages (AMP) project to give mobile users lightning-fast response times when accessing web pages on mobile devices. AMP delivers great user experiences by providing a framework for optimizing web pages that otherwise would take much longer to load on a mobile platform. This book shows how to solve page performance issues using the mobile web technologies available today. You will learn how to build instant-loading web pages, and have them featured more prominently on Google searches. If you want your website to succeed on mobile, if you care about SEO, and if you want to stay competitive, then this book is for you! You will go on a mobile web development journey that demonstrates with concrete examples how to build lightning-fast pages that will keep your visitors on-site and happy. This journey begins by showing how to build a simple blog article-style web page using AMP. As new concepts are introduced this page is gradually refined until you will have the skills and confidence to build a variety of rich and interactive mobile web pages. These will include e-commerce product pages, interactive forms and menus, maps and commenting systems, and even Progressive Web Apps.
Table of Contents (24 chapters)
Title Page
Credits
About the Author
Acknowledgements
About the Reviewer
www.Packtpub.com
Customer Feedback
Preface
14
Actions and Events
16
amp-bind Permitted Attribute Bindings

Introducing <amp-bind>


We've mentioned amp-bind a few times in the previous chapters; now it's time to see it in action. The amp-bind component makes it possible to program custom interactivity into your pages. You can think of it as a programming layer for your AMP pages, sort of a JavaScript-lite.

You can add amp-bind to your pages with the following script:

<script async custom-element="amp-bind" src="https://cdn.ampproject.org/v0/amp-bind-0.1.js"></script>

State, expressions, and data-binding

There are three parts to amp-bind: stateful data, expressions, and data-binding. With amp-bind, element properties can be linked to custom JavaScript-like expressions which can reference custom state variables. This needs some explanation, so let's expand on it now.

Stateful data in <amp-bind> with <amp-state>

The amp-bind component introduces the notion of document state. You can think of this as mutable JSON variable storage.

Initializing state with <amp-state>

By default...