December 2013
Intermediate to advanced
480 pages
14h 11m
English
Content preview from Windows® 8.1 Apps with HTML5 and JavaScript UnleashedBecome 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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Retrieving a Single Element with the WinJS.Utilities.id() Method
If you want to retrieve a single element from a document, instead of matching a set of elements, then you can use the WinJS.Utilities.id() method. For example, the following line of code changes the background color of an element to the color red:
WinJS.Utilities.id("message").setStyle("background-color", "red");
The statement matches the one and only element with an id of message. For example, the statement matches the following DIV element:
<div id="message">Hello!</div>
Notice that you do not use a hash when matching a single element with the WinJS.Utilities.id() method. You would need to use a hash when using the
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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.