Browser & Web Performance · Middle · Question 16 of 75

A search box filters a 5 000-item list on every keystroke and typing feels laggy. Which fix helps INP the most?

✓Correct answer: Update the input immediately and debounce or defer the expensive filtering
2Add will-change: contents to the list
3Load the list with rel=preload

Explanation

The keystroke's frame should only show the typed character. The heavy list update can happen later or in smaller chunks.

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