Hour 16JavaScript and AJAX
As you’ve seen with the JavaScript examples so far in this book, JavaScript is a client-side programming language that allows you to display and interact with information in a web browser. AJAX, on the other hand, is a set of technologies (one of which is JavaScript) that allows you to move beyond the client-side boundaries of a web browser and work with files on a web server or with responses from server-side programs.
This hour introduces you to the basics of working with AJAX, including the following highlights:
How AJAX enables JavaScript to communicate with server-side programs and files
Using the XMLHttpRequest ...
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