April 2007
Intermediate to advanced
1728 pages
47h 51m
English
Content preview from JavaScript® Bible, Sixth EditionBecome 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. Authoring Challenges Amid the Browser Wars
IN THIS CHAPTER
How leapfrogging browser developments help and hurt Web developers
Separating the core JavaScript language from document objects
The importance of developing a cross-browser strategy
If you are starting to learn JavaScript at this point in the history of scriptable browsers, you have both a distinct advantage and disadvantage. The advantage is that you have the wonderful capabilities of mature browser offerings from Microsoft, The Mozilla Foundation (under brand names such as Firefox, Netscape, and Camino), Apple, and others at your bidding. The disadvantage is that you have not experienced the painful history of authoring for older browser versions that were buggy and at times incompatible with one another due to a lack of standards. You have yet to learn the anguish of carefully devising a scripted application for the browser version you use, only to have site visitors sending you voluminous e-mail messages about how the page triggers all kinds of script errors when run on a different browser brand, generation, or operating system platform.
Welcome to the real world of scripting Web pages with JavaScript. Several dynamics are at work to help make an author's life difficult if the audience for the application uses more than a single type of browser. This chapter introduces you to these challenges before you type your first word of JavaScript code. My fear is that the subjects I raise may dissuade you from progressing ...
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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.