AJAX: A Beginner’s Guide by Steven Holzner

By Steven Holzner

Книга AJAX: A Beginner’s advisor AJAX: A Beginner’s consultant Книги AJAX Автор: Steven Holzner Год издания: 2008 Формат: pdf Издат.:McGraw-Hill Страниц: 475 Размер: eleven ISBN: 0-07-159531-7 Язык: Английский sixty eight (голосов: 1) Оценка:Essential talents — made easy!Learn find out how to use AJAX (Asynchronous JavaScript and XML) to create internet purposes that reflect the richness of machine functions. utilizing easy-to-follow examples, "AJAX: A Beginner's consultant" will get you got to work with this state of the art choice of applied sciences very quickly. Create XMLHttpRequest gadgets and use JavaScript, XML, DHTML, CSS, Hypertext Preprocessor, and extra to construct next-generation internet purposes. you are going to additionally learn about numerous unfastened, pre-written AJAX frameworks you should use correct away.Designed for simple Learning:Key abilities & recommendations — Lists of particular talents coated within the chapter.Ask the specialist — "Questions & solutions" sections packed with bonus details and precious tips.Try This — Hands-on routines that exhibit find out how to follow your skills.Annotated Syntax — instance code with remark that describes the programming concepts being illustrated.Table of contents:Chapter 1. crucial AJAX bankruptcy 2. learning JavaScript bankruptcy three. growing AJAX functions bankruptcy four. complete Throttle AJAX bankruptcy five. utilizing AJAX Frameworks bankruptcy 6. dealing with XML in AJAX bankruptcy 7. operating with Cascading type Sheets with AJAX bankruptcy eight. dealing with Dynamic HTML with AJAX bankruptcy nine. Introducing Hypertext Preprocessor with AJAX bankruptcy 10. personal home page intensive bankruptcy eleven. Validating consumer enter with AJAX and Hypertext Preprocessor bankruptcy 12. utilizing the HTML DOM and AJAX Index

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Extra resources for AJAX: A Beginner’s Guide

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Html, which WordPad understands. But it will be an issue when it comes to creating the PHP files we’ll be using to perform programming on the web server toward the end of this book (PHP is a programming language you use on web servers, as you’ll see starting in Chapter 9). txt, which won’t work on the server. php”. txt extension. html can be opened directly in your browser from disk. html, open it in your browser and confirm the results by comparing it to what you see in Figure 2-3. html; in Firefox, choose File | Open File).

And JavaScript inevitably caught the attention of Microsoft. At the time, the two dominant browsers were Netscape Navigator and Microsoft Internet Explorer. Microsoft didn’t want to be left behind in the JavaScript wars, but it didn’t want to simply license JavaScript from Netscape—so it created its own version, JScript. 0, and over the years, JavaScript and JScript have become increasingly similar. However, there are a few differences that we’ll come across in our guided tour of Ajax (for example, the way you create XMLHttpRequest objects, the fundamental programming construct of Ajax, differs in JavaScript and JScript), but it won’t be anything we can’t handle.

In other words, a function can do its work and pass you a result of some kind back. For example, say that you have a clever function named adder, and you pass it two numbers to add—how can it send you back the answer from the adder function? Say that adder looks like this: function adder(operand1, operand2) { . . } You can return a value from a function with the return statement, which in adder’s case looks like this: function adder(operand1, operand2) { return operand1 + operand2; } That is, we’re adding operand1 and operand2, the two data items passed to adder, and returning the sum.

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