April 2013
Intermediate to advanced
264 pages
7h 44m
English
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Data Attributes
A further way that HTML5 extends the meaning that elements have is through the use of data attributes. These are user-defined attributes, the values of which are intended to provide information related to an element but without giving any extra semantic meaning to either machines or humans. Let me explain that in a little more detail.
Say you want to output a set of data, each item of which has two values—a name and a number (a unique database ID, for example). You want the name to be shown in the document, but you also want to make the number available for running scripts on. As it stands, no relevant attribute is available to store that information; you’d probably have to use a class:
<p class="id-123">Peter</p>
Data attributes ...
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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.