It uses delayed window.resize listener (with setTimeout). Bind your listeners to the only one delayed-"resize" event instead of copying that code.
Add your listener (and get an ID key):
var callbackID = windowResizer.queue.add( yourFunc, force );
yourFunc: function, callback runs after last event
force: true/false, to run your callback right now after adding to the queue.
Remove your listener by ID key (and get boolean result):
var removedORnot = windowResizer.queue.remove( callbackID );