I've been in a similar situation, where I had a list of search results which 
were updated on every key press (but at most once every 100ms), and I wanted 
each row in the results table to have mouse-hover effects. My solution was 
to attach an event handler only to the table, and then wait until the on 
mouse move event to work out which element the mouse was over by using 
Event.element(event). This means that you don't need to attach or detach any 
event handlers, since there is always just the one on the table itself.


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