By Jeffrey Sambells, Jeremy Keith
With this moment version of the preferred DOM Scripting: website design with JavaScript and the record item Model comes a contemporary revision to replace top practices and guidance. It comprises complete insurance of HTML5 in a brand new, devoted bankruptcy, and info on JavaScript libraries and the way they could aid your scripting.
The e-book offers every little thing you'll have to commence utilizing JavaScript and the rfile item version to augment your websites with client-side dynamic results and user-controlled animation. It exhibits how JavaScript, HTML5, and Cascading kind Sheets (CSS) interact to create usable, standards-compliant net designs. We'll additionally disguise cross-browser compatibility with DOM scripts and the way to ensure they degrade gracefully while JavaScript isn't available.
DOM Scripting: website design with JavaScript and the rfile item version focuses on JavaScript for including dynamic results and manipulating web page constitution at the fly utilizing the rfile item version. You'll commence with a crash direction in JavaScript and the DOM, then stream directly to a number of real-world examples that you'll construct from scratch, together with dynamic picture galleries and dynamic menus. You'll additionally the best way to manage website types utilizing the CSS DOM, and create markup at the fly.
a good way to create web content which are attractive, dynamic, obtainable, and standards-compliant, this is often the e-book for you!
<h3>What you’ll learn</h3> * observe dynamic habit in your pages with out placing JavaScript on your markup
* Write scripts that degrade gracefully whilst JavaScript isn’t to be had
* Use net criteria to make sure cross-browser compatibility
* Harness the facility of the DOM to create user-controlled animation
* additionally contains an advent to Ajax
<h3>Who this booklet is for</h3>
This ebook is for net builders desirous to extend their wisdom of the DOM so as to add interactivity and performance to their web content.
<h3>Table of Contents</h3><ol> * a quick historical past of JavaScript
* JavaScript Syntax
* The rfile item version
* A JavaScript picture Gallery
* top Practices
* the picture Gallery Revisited
* growing Markup at the Fly
* bettering content material
* CSS-DOM
* An lively Slideshow
* HTML5
* placing all of it jointly
* DOM Scripting Libraries
</ol>
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Extra info for DOM Scripting: Web Design with JavaScript and the Document Object Model (2nd edition)
Sample text
In fact, the only element that isn’t contained within another element is the element. It’s the root of our node tree. Text nodes Elements are just one type of node. If a document consisted purely of empty elements, it would have a structure, but the document itself wouldn’t contain much content. On the Web, where content is king, most content is provided by text. ” This is a text node. In XHTML, text nodes are always enclosed within element nodes. But not all elements contain text nodes.
No wonder JavaScript has a bad reputation! 31 CHAPTER 3 ■ THE DOCUMENT OBJECT MODEL Fortunately, we won’t be dealing with the Browser Object Model very much. Instead, we’ll focus on what’s inside the browser window. The object that handles the contents of a web page is the document object. For the rest of this book, we’re going to be dealing almost exclusively with the properties and methods of the document object. That explains the letter D (document) and the letter O (object) in DOM. But what about the letter M?
Camel casing is simply a convenient way to work within that restriction. Variable scope We’ve mentioned already that it’s good programming practice to use var when you are assigning a value to a variable for the first time. This is especially true when you are using variables in functions. A variable can be either global or local. When we differentiate between local and global variables, we are discussing the scope of variables. A global variable can be referenced from anywhere in the script. Once a global variable has been declared in a script, that variable can be accessed from anywhere in that script, even within functions.
