How do I build a search suggestion dropdown in React?
Add a dropdown that appears as the user types, showing query suggestions from the API. Handle keyboard navigation with up and down arrows and selection on Enter, and close the dropdown on outside click or escape.
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More FAQs in Building Search and Filter UI in a React YouTube Clone
Build a controlled input with the query in state, debounce the search so a request only fires after the user stops typing, fetch results from your API, handle loading and error, and render results in a grid with stable keys.
So a request only fires after the user stops typing, avoiding rate limits and unnecessary work. Firing on every keystroke hammers your API or rate limiter and makes the UI feel janky.
Both query and selected filter are state. The fetch depends on both, so include both in the useEffect dependency array so it re-runs when either changes. Combine them in the request to the API.
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