React 18 - `useTransition` not preventing stale updates in complex state management
I've encountered a strange issue with I'm testing a new approach and I'm working on a project and hit a roadblock..... I've hit a wall trying to Quick question that's been bugging me - I'm currently working on a React 18 project and integrating the new `useTransition` hook to manage loading states for a complex form that dynamically adds and removes fields... The goal is to ensure a smooth user experience by deferring updates while the form is processing. However, I'm running into issues where the state appears to be stale when I use `setState` in combination with `startTransition`. Here's a simplified version of my component: ```javascript import React, { useState, useTransition } from 'react'; const MyForm = () => { const [fields, setFields] = useState([]); const [isPending, startTransition] = useTransition(); const addField = () => { startTransition(() => { setFields((prevFields) => [...prevFields, { id: Date.now(), value: '' }]); }); }; const updateField = (id, value) => { setFields((prevFields) => { const fieldIndex = prevFields.findIndex(field => field.id === id); if (fieldIndex === -1) return prevFields; const newFields = [...prevFields]; newFields[fieldIndex].value = value; return newFields; }); }; return ( <div> <button onClick={addField}>Add Field</button> {fields.map(field => ( <input key={field.id} value={field.value} onChange={(e) => updateField(field.id, e.target.value)} /> ))} {isPending && <span>Loading...</span>} </div> ); }; ``` In this setup, when I add a new field and immediately type in it, sometimes the state doesn't reflect the latest input. I also see flickering behavior as the fields update. I’ve confirmed that the `useTransition` is correctly set up, and the loading spinner shows up as expected, but the input values seem to lag behind. The console does not show any specific behavior messages related to this, but I suspect it might be a question with how I'm mutating the state. I've tried wrapping the `updateField` function with `startTransition`, but that caused more issues by preventing the input from updating until after the transition completes. I'm on React 18.0.0, and I would appreciate any guidance on best practices for using `useTransition` in scenarios with dynamic inputs like this. What am I missing here? My development environment is Windows. Has anyone else encountered this? Is there a simpler solution I'm overlooking? I'm using Javascript 3.10 in this project.