YUI 3 Cookbook by Evan Goer

Author:Evan Goer [Evan Goer]
Language: eng
Format: epub, pdf
Tags: COMPUTERS / Programming Languages / JavaScript
ISBN: 9781449393885
Publisher: Yahoo Press
Published: 2012-05-23T16:00:00+00:00

Note

You must run this example from a real web server, not the local filesystem.

Discussion

Y.io() breaks the XHR transaction into four main phases, represented by five events. (For cross-domain requests, there is a sixth event named xdrReady.) As Example 5-3 demonstrates, they fire in this order:

start fires at the start of the transaction. The callback receives a transaction id, but not a response object (for obvious reasons). This event is a good place to either do any common setup work to receive the request, or update the user interface with some indication that the page is fetching data.

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