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  • Matthew Hatcher thinks this is interesting:

As a comprehensive JavaScript framework, YUI provides a large number of utility methods. Some YUI utility methods mirror a native ECMAScript method, enabling you to use native code when that is available, but falling back to YUI code in older browsers. Other YUI utility methods provide a nicer or more powerful wrapper around a lower-level native API. Finally, some YUI utility methods provide high-level features or solve common problems that aren’t yet addressed by W3C or ECMAScript specifications.

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Cover of YUI 3 Cookbook

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YUI