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Chapter 6

Paving the Way for Web Applications

To ensure we’re all singing from the same hymn sheet, let’s start by defining a web application. Broadly speaking, a web application is an application that is accessed over a network, generally the Internet or an intranet. Web applications typically are built with a server-side technology (like .NET, PHP, Python, or Rails) and use HTML, CSS, and JavaScript to render the application in a browser.

The quantity of web applications (web apps) has risen sharply over the past few years. Undoubtedly, this is in part attributable to the introduction of Ajax. We already had JavaScript and XML, as well as Microsoft’s ...

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