If you have ever wanted to send a form without reloading the page, provide a look-ahead search function that prompts the user with suggestions as they type, or auto-save documents, then what you need is AJAX (also known as XHR). A behind-the-scenes request is sent to the server, and returning data to your form. Whenever you see a loader animation after you have made some action on the page, it’s probably an AJAX request being submitted to the server.
from Articles on Smashing Magazine — For Web Designers And Developers http://ift.tt/2EuFsvK via http://www.webmasterforum.ws/long-tail-pro-review-platinum-discount
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