What are some common mistakes when using Intersection Observer?

What are some common mistakes when using Intersection Observer?

Some common mistakes include not properly handling the threshold, forgetting to unobserve elements, and using it for non-visible elements.

Can you explain the threshold issue a bit more?

Sure! The threshold defines at what percentage of the target's visibility the observer's callback should be executed. Misconfiguring it can lead to unexpected behavior.

What happens if I forget to unobserve elements?

If you forget to unobserve elements, it can lead to memory leaks and performance issues, as the observer will continue to track those elements even when they're no longer needed.

Are there any performance tips for using Intersection Observer?

Yes! Use a single observer for multiple elements, batch updates in the callback, and avoid heavy computations inside the callback to maintain performance.