AJAX is a JavaScript-based method to make changes to webpages and mobile apps without reloading. jQuery, in turn, makes working with AJAX easier than JavaScript alone. Get a quick introduction on how to use AJAX and jQuery in web projects in this course with Joe Chellman. Learn about AJAX and its simpler sibling, AHAH, and find out how to pull static HTML into an existing page with AHAH. Then learn how to fetch JSON-formatted data from a third-party service using AJAX, which adds a bit more power without a lot more work. Last, Joe offers you a challenge: Look up a user-entered zip code, and fill out the user's city and state automatically.
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