React JS useCallback

  • useCallback React Hook returns a memoized version of a callback function for better performance
  • Note: consider memoization as caching a value so that it does not need to be recalculated.

Here’s an example of using useCallback to improve performance:

 useCallback is used to memoize the plus function. The function only changes if setCount changes, so it’s only re-created if setCount is changed. This can improve performance by avoiding unnecessary re-renders.

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