React by Patrik

Overview of Optimized Search Code Structure

Overview: The final structure clearly separates the input handling from the list rendering, optimizing React performance by ensuring that components only re-render when necessary. The SearchPage acts as the parent that coordinates state changes, while the SearchInput and SearchList components are responsible for their respective tasks.

Overview of the Code:

// SearchPage.js
function SearchPage() {
  const [debouncedQuery, setDebouncedQuery] = useState("");

  const handleDebouncedQueryChange = (newQuery) => {
    setDebouncedQuery(newQuery);
  };

  return (
    <div>
      <SearchInput onDebouncedQueryChange={handleDebouncedQueryChange} />
      <SearchList q={debouncedQuery} />
    </div>
  );
}

// SearchInput.js
function SearchInput({ onDebouncedQueryChange }) {
  const [searchQuery, setSearchQuery] = useState("");
  const debouncedQuery = useDebouncedValue(searchQuery, 800);

  useEffect(() => {
    onDebouncedQueryChange(debouncedQuery);
  }, [debouncedQuery, onDebouncedQueryChange]);

  return (
    <input
      type="text"
      value={searchQuery}
      onChange={(e) => setSearchQuery(e.target.value)}
      placeholder="Search..."
    />
  );
}

// SearchList.js
function SearchList({ q }) {
  const { data, isFetching } = useSearchSnipps(q);

  return (
    <div>
      {isFetching ? <Spinner /> : data.map((item) => <FeedItem key={item.id} item={item} />)}
    </div>
  );
}

This structure ensures efficient rendering, clear separation of concerns, and improved user experience in a React-based search interface.

Conclusion

This set demonstrates an effective approach to handling search functionality in a React application, focusing on optimizing performance by separating input handling and result rendering. By applying debouncing in the input field and managing state in a parent component, we ensure that only the necessary components re-render, providing a smoother experience for the user.