JQuery is slowly moving in that direction [0] and YUI has long let you pick and choose which "abstractions" you need [1]. [0] https://github.com/jquery/jquery/

JQuery is slowly moving in that direction [0] and YUI has long let you pick and choose which "abstractions" you need [1]. [0] https://github.com/jquery/jquery/blob/master/README.md https://github.com/jquery/jquery/blob/master/README.md [1] http://yuilibrary.com/yui/configurator/ http://yuilibrary.com/yui/configurator/ [edited with better link to JQuery build documentation]