June 2017
Intermediate to advanced
873 pages
18h 9m
English
Content preview from Dart: Scalable Application DevelopmentBecome 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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Using application cache to work offline
When, for some reason, our users don't have web access or the website is down for maintenance (or even broken), our web-based applications should also work offline. The browser cache is not robust enough to be able to do this, so HTML5 has given us the mechanism of ApplicationCache. This cache tells the browser which files should be made available offline. The effect is that the application loads and works correctly, even when the user is offline. The files to be held in the cache are specified in a manifest file, which has a .mf or .appcache extension.
How to do it...
Look at the appcache application; it has a manifest file called appcache.mf.
- The manifest file can be specified in every web page that has to ...
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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.