Chapter 5. Ajax

Now it’s time to look at ajax. In this chapter, you will not only learn how Ajax works, but also how it changes the way you think about and develop online applications. You will also see the different formats of data that Ajax allows you to access and how to process each format in the browser, ready for display on the page.

Ajax is an acronym for Asynchronous JavaScript and XML, even though it appears in this book as a regular noncapitalized word.

Ajax is simply a catchy name given to a JavaScript programming technique that enables data to be moved between the browser and the server without the usual “round-trip to the server and a page refresh”—the only model by which the Web previously worked. In that model, even updating ...

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