# Yahoo! UI Library

### YAHOO Global 2.7.0

Yahoo! UI Library > yahoo
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### Module: yahoo

The YAHOO object is the single global object used by YUI Library. It contains utility function for setting up namespaces, inheritance, and logging. YAHOO.util, YAHOO.widget, and YAHOO.example are namespaces created automatically for and used by the library.

This module contains the following classes:

- YAHOO
- YAHOO_config
- YAHOO.env
- YAHOO.env.ua
- YAHOO.lang

Copyright © 2009 Yahoo! Inc. All rights reserved.