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Aug 19th, 2019
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  1. import { useEffect, useState } from "react";
  2.  
  3. function useDebounce(value, delay) {
  4. const [debouncedValue, setDebouncedValue] = useState(value);
  5.  
  6. useEffect(() => {
  7. const handler = setTimeout(() => {
  8. setDebouncedValue(value);
  9. }, delay);
  10.  
  11. return () => {
  12. clearTimeout(handler);
  13. };
  14. }, [value, delay]);
  15.  
  16. return debouncedValue;
  17. };
  18.  
  19. function useDebouncedState(initialState, interval) {
  20. const [value, setValue] = useState(initialState);
  21. const debouncedValue = useDebounce(value, interval);
  22.  
  23. return [value, setValue, debouncedValue];
  24. }
  25.  
  26. function useDebouncedEffect(value, interval, effect) {
  27. const debouncedValue = useDebounce(value, interval);
  28.  
  29. useEffect(() => effect(debouncedValue), [debouncedValue, effect]);
  30. }
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