implementing dynamically updating state in a nested React component leading to stale closures
I'm refactoring my project and I'm trying to implement After trying multiple solutions online, I still can't figure this out... I'm working with a question with state updates in a nested component when using functional components with hooks. Specifically, I have a parent component that tracks a `counter` state, which is then passed down to a child component that increments this counter based on user events. After implementing the logic, the increments are not reflecting the most recent value of the counter, leading to increments being based on a stale closure. Here’s a simplified version of my code: ```javascript import React, { useState } from 'react'; const Parent = () => { const [counter, setCounter] = useState(0); return ( <div> <h1>Counter: {counter}</h1> <Child incrementCounter={() => setCounter(counter + 1)} /> </div> ); }; const Child = ({ incrementCounter }) => { return ( <button onClick={incrementCounter}>Increment</button> ); }; export default Parent; ``` I’ve confirmed that the initial state of `counter` is correctly set and displayed. However, when I click the increment button repeatedly, the displayed counter does not increase as expected. Instead, it appears to only increment by 1 after multiple clicks, regardless of how many times I click it in quick succession. I suspect this is related to how closures work in JavaScript. My initial approach was to pass the `incrementCounter` function directly, but I believe this is capturing the initial state of `counter` and not the updated state. I tried using the functional form of `setCounter` like so: ```javascript const Child = ({ setCounter }) => { return ( <button onClick={() => setCounter(prev => prev + 1)}>Increment</button> ); }; ``` However, when I did this, I encountered an behavior about `setCounter` not being defined. I’ve also considered using `useCallback` to memoize the `incrementCounter` function, but I’m not sure if that’s the right approach. Does anyone have insights into what might be going wrong here or how to manage state updates effectively in this scenario? I'm using React 17.0.2, and any advice would be greatly appreciated. I'd really appreciate any guidance on this. I'm on Ubuntu 22.04 using the latest version of Javascript. What's the correct way to implement this? This is for a CLI tool running on Debian.