June 2012
Intermediate to advanced
226 pages
5h 5m
English
Content preview from Web Performance Daybook Volume 2Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Chapter 2. localStorage Read Performance
Web Storage (http://dev.w3.org/html5/webstorage/) has quickly become one
of the most popular HTML5-related additions to the web developer toolkit.
More specifically, localStorage has found
a home in the hearts and minds of web developers everywhere, providing very
quick and easy client-side data storage that persists across sessions. With
a simple key-value interface, we’ve seen sites take advantage of localStorage in unique and interesting
ways:
Disqus (http://www.disqus.com/), the popular feedback management system, uses
localStorageto save your comment as you type. So if something horrible happens, you can fire back up the browser and pick up where you left off.Google (http://www.google.com/) and Bing (http://www.bing.com/) store JavaScript and CSS in
localStorageto improve their mobile site performance (more info: http://www.stevesouders.com/blog/2011/03/28/storager-case-study-bing-google/).
Of the use cases I’ve seen, the Google/Bing approach is one that seems
to be gaining in popularity. This is partly due to the difficulties of
working with the HTML5 application cache and partly due to the publicity
that this technique has gained from the work of Steve Souders and others.
Indeed, the more I talk to people about localStorage and how useful it can be for storing
UI-related information, the more people I find who have already started to
experiment with this technique.
What I find intriguing about this use of localStorage ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.