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Web Developer's Reference Guide

Web Developer's Reference Guide

By : Johanan, Khan, Zea
4.7 (3)
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Web Developer's Reference Guide

Web Developer's Reference Guide

4.7 (3)
By: Johanan, Khan, Zea

Overview of this book

This comprehensive reference guide takes you through each topic in web development and highlights the most popular and important elements of each area. Starting with HTML, you will learn key elements and attributes and how they relate to each other. Next, you will explore CSS pseudo-classes and pseudo-elements, followed by CSS properties and functions. This will introduce you to many powerful and new selectors. You will then move on to JavaScript. This section will not just introduce functions, but will provide you with an entire reference for the language and paradigms. You will discover more about three of the most popular frameworks today—Bootstrap, which builds on CSS, jQuery which builds on JavaScript, and AngularJS, which also builds on JavaScript. Finally, you will take a walk-through Node.js, which is a server-side framework that allows you to write programs in JavaScript.
Table of Contents (17 chapters)
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9
9. JavaScript Expressions, Operators, Statements, and Arrays
16
Index

E4X – ECMAScript for XML


It is an extension in JavaScript for support of XML extension with JavaScript. By using E4x, it provides easy access for XML document by the DOM interface. It is a server-side technology used in Rhino and SpiderMonkey because these are powerful extensions by all browsers.

Before E4X, it was very difficult and time consuming for reading and writing in XML. In JavaScript, E$X provides XML document as a XML object, which represents XML fragments as a xmlList. E4X supports special kinds of XML objects. This technique is used in client-side programming.

Here is an example:

varstudent=<student>
<studentInfo>
<name>Ali</name></studentInfo>
</student>

If we enter this XML into our JavaScript code, the E4X interpreter will handle it as an XML object in your script.

CONTINUE READING
83
Tech Concepts
36
Programming languages
73
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