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
About the Author
About the Reviewer
Customer Feedback
Actions and Events
amp-bind Permitted Attribute Bindings

Implementing a live leaderboard

Another nice feature of amp-live-list is that updates can be applied automatically, without the need to click or tap a button. This is very useful for live-updating of scores that you might find in sport, such as football scores, or leaderboard style rankings that you would find in racing and election results.

Let's implement a live Grand Prix position leaderboard. To get the list items to update without having to press the update button, we need to make sure that we do the following:

  • Don't change any item IDs after initial load: If you introduce new IDs, then the update button will be displayed.
  • Include the data-update-time attribute: If the latest server update contains a value higher than the current value in the DOM for any item, then amp-live-list will replace the item with the new content.


Note that amp-live-list won't re-sort already rendered items, even if you change the data-sort-time; data-sort-time is only used for new insertions.

On the initial...