Handling State Reset in React with Complex Objects - advanced patterns on Re-renders
I'm testing a new approach and I'm relatively new to this, so bear with me. I've searched everywhere and can't find a clear answer. I'm working with an scenario with resetting state in a React component that manages a complex object. The component uses the `useState` hook to manage an object with nested properties. When the state is reset, I'm seeing unexpected values retained in the state, leading to inconsistent behavior on re-renders. Here's a simplified version of my component: ```javascript import React, { useState } from 'react'; const MyComponent = () => { const [formState, setFormState] = useState({ user: { name: '', email: '' }, preferences: { notifications: true } }); const handleChange = (e) => { const { name, value } = e.target; setFormState((prevState) => ({ ...prevState, user: { ...prevState.user, [name]: value } })); }; const resetForm = () => { setFormState({ user: { name: '', email: '' }, preferences: { notifications: true } }); }; return ( <div> <input name="name" value={formState.user.name} onChange={handleChange} /> <input name="email" value={formState.user.email} onChange={handleChange} /> <button onClick={resetForm}>Reset</button> </div> ); }; export default MyComponent; ``` The `resetForm` function is supposed to clear the input fields, but I noticed that after clicking the reset button, the input fields still show the previous values if I had modified them before resetting. The debugging console logs reveal that the state is indeed being set correctly, but the UI doesn’t reflect those changes immediately. I’ve tried using the functional update form of `setFormState`, but it seems not to address the scenario either. My React version is 17.0.2, and I'm using a functional component structure. Is there something I'm missing about state updates in React, or is there a common pitfall with resetting nested state objects that I need to be aware of? Any insights would be greatly appreciated. Am I missing something obvious? For context: I'm using Javascript on Linux. Am I missing something obvious? This issue appeared after updating to Javascript 3.10.