September 2010
Intermediate to advanced
592 pages
18h 30m
English
Content preview from Closure: The Definitive GuideBecome 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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Preface
JavaScript borrows many great ideas from other programming languages, but its most unique, and perhaps most powerful, feature is that any code written in JavaScript can run as-is in any modern web browser. This is a big deal, and it is unlikely to change anytime soon.
As web browsers improve and become available on more devices, more applications are being ported from desktop applications to web applications. With the introduction of HTML5, many of these applications will be able to work offline for the first time. In order to create a superior user experience, much of the logic that was previously done on the server will also have to be available on the client. Developers who have written their server logic in Java, Python, or Ruby will have to figure out how to port that server logic to JavaScript. Tools like Google Web Toolkit, which translate Java to JavaScript can help with this, though such tools are often clumsy because the idioms from one programming language do not always translate smoothly into that of another. However, if your server code is written in JavaScript, this is not an issue.
I believe that the use of server-side JavaScript (SSJS) is just beginning. Previously, most implementations of JavaScript were too slow to be considered a viable option for server code. Fortunately, the recent competition among browser vendors to have the fastest JavaScript engine makes that difference far less significant (http://shootout.alioth.debian.org).
Because of the emerging ...
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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.