How to implement guide with debouncing input in react causing incorrect state updates
I'm working through a tutorial and After trying multiple solutions online, I still can't figure this out... I'm stuck on something that should probably be simple. I've looked through the documentation and I'm still confused about I'm working on a search input in a React app that uses a debounce function to limit the number of API calls made while the user types. However, I'm working with an scenario where the state doesn't update correctly if the user types quickly. I'm using React 17 and a custom debounce hook. Here's the code for my input component: ```javascript import React, { useState } from 'react'; import useDebounce from './useDebounce'; // Custom hook for debouncing const SearchInput = () => { const [inputValue, setInputValue] = useState(''); const debouncedValue = useDebounce(inputValue, 500); const handleChange = (event) => { setInputValue(event.target.value); }; React.useEffect(() => { if (debouncedValue) { // Simulate an API call console.log('Fetching data for:', debouncedValue); } }, [debouncedValue]); return <input type="text" value={inputValue} onChange={handleChange} />; }; ``` The `useDebounce` hook looks like this: ```javascript import { useEffect, useState } from 'react'; const useDebounce = (value, delay) => { const [debouncedValue, setDebouncedValue] = useState(value); useEffect(() => { const handler = setTimeout(() => { setDebouncedValue(value); }, delay); return () => { clearTimeout(handler); }; }, [value, delay]); return debouncedValue; }; ``` The scenario arises when I type quickly; sometimes, the console logs an outdated value or even an empty string, which causes the wrong API calls to be made. I suspect it may be due to how the closure is handling the state updates, but I can’t seem to pinpoint the question. I’ve tried logging the `inputValue` and `debouncedValue` in various places, and they don’t always reflect the latest state. What could be causing this inconsistency? My development environment is macOS. Any help would be greatly appreciated! Could this be a known issue? The project is a application built with Javascript. How would you solve this?