elementIsVisible
Checks if an element is visible by recursing up the node tree until it finds either the body or an element that is hidden. Returns a boolean.
Should work with all module loaders, I use it with require.js, I have not tested it with any of the other ones. I wrote this based on a stack overflow.. I did not like the answer and coudl not find a simple module to do this. http://stackoverflow.com/questions/178325/checking-if-an-element-is-hidden
It is used in the dom navigation library magic-focus-finder
install with bower:
bower install --save elementIsVisible