Carlos Florêncio
48 lines
1.1 KiB
TypeScript
48 lines
1.1 KiB
TypeScript
import { useCallback, useEffect, useRef, useState } from "react";
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/**
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* Debounces a value. Returns the debounced value that updates after the specified delay.
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*/
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export function useDebounce<T>(value: T, delay: number): T {
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const [debouncedValue, setDebouncedValue] = useState(value);
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useEffect(() => {
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const handler = setTimeout(() => {
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setDebouncedValue(value);
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}, delay);
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return () => {
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clearTimeout(handler);
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};
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}, [value, delay]);
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return debouncedValue;
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}
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/**
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* Returns a debounced version of the callback function.
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*/
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export function useDebouncedCallback(
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callback: (value: string) => void,
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delay: number,
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): (value: string) => void {
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const timeoutRef = useRef<ReturnType<typeof setTimeout> | null>(null);
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const callbackRef = useRef(callback);
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useEffect(() => {
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callbackRef.current = callback;
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}, [callback]);
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return useCallback(
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(value: string) => {
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if (timeoutRef.current) {
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clearTimeout(timeoutRef.current);
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}
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timeoutRef.current = setTimeout(() => {
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callbackRef.current(value);
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}, delay);
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},
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[delay],
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);
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}
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