I've found getBoundingClientRect can become an expensive call if it's used a lot. The scroll event is fired very rapidly in some browsers too, so as with most things involving this event, it's usually worthwhile debouncing calls to your handler.
Of course if you're able to use the InteractionObserver as others have suggested then great! But your method provides a much wider browser compatibility!
Good feedback, Andrew.
By the looks of it, I should probably update the article. Everyone needs to know the cost of using getBoundingClientRect and how InteractionObserver might be a better fit in heavier projects.
By teaching, I've learnt a lot myself, thanks for pointing this out.
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I've found
getBoundingClientRect
can become an expensive call if it's used a lot. Thescroll
event is fired very rapidly in some browsers too, so as with most things involving this event, it's usually worthwhile debouncing calls to your handler.Of course if you're able to use the
InteractionObserver
as others have suggested then great! But your method provides a much wider browser compatibility!Good feedback, Andrew.
By the looks of it, I should probably update the article. Everyone needs to know the cost of using
getBoundingClientRect
and howInteractionObserver
might be a better fit in heavier projects.By teaching, I've learnt a lot myself, thanks for pointing this out.