AJAX: A Beginner's Guide (Beginner's Guide (Osborne Mcgraw - download pdf or read online

By Steven Holzner

ISBN-10: 0071494294

ISBN-13: 9780071494298

This can be extra of a reaction to the former comment. The code in query is located at the publishers web site (listed at the again cover). simply look for "ajax". it really is at the left hand facet below "Downloads". For ease, i have incorporated the hyperlink. http://www.mhprofessional.com/product.php?isbn=0071494294

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Read Online or Download AJAX: A Beginner's Guide (Beginner's Guide (Osborne Mcgraw Hill)) PDF

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Additional info for AJAX: A Beginner's Guide (Beginner's Guide (Osborne Mcgraw Hill))

Example text

Returning Data from Functions You can also return data from functions. 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.

Html, choose File | Save As to open the Save As dialog box. html and—this is important—in the Save Chapter 2: Getting to Know JavaScript As Type drop-down list box, choose Text Document, not the default Rich Text Format (RTF). If you save web pages in RTF format, browsers won’t be able to read them. txt” to your file. 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).

Its purpose is to tell the browser that there is JavaScript code present, and that the browser should run that code. Notice also the language attribute of the