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The "Utilities" Lesson is part of the full, Web UI Architecture course featured in this preview video. Here's what you'd learn in this lesson:

Utility tools give you big or small abstractions. They may or may not involve DOM manipulation and allow instant access to best practices. Finding the balance between covering use cases and code size is the key to a good utility tool. Underscore - http://underscorejs.org/ Modernizr - http://modernizr.com/ jQuery - http://jquery.com

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