React 18: Uncaught TypeError when using useEffect with async data fetching in functional components
I'm confused about I'm optimizing some code but I'm stuck on something that should probably be simple. I'm stuck on something that should probably be simple... I'm working with an scenario when trying to fetch data asynchronously inside a functional component using `useEffect`. I'm on React 18 and attempting to load user data from an API when the component mounts. However, I'm getting an `Uncaught TypeError: want to read properties of undefined (reading 'map')` when I try to render the fetched data. Here's my code: ```javascript import React, { useEffect, useState } from 'react'; const UserList = () => { const [users, setUsers] = useState([]); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { try { const response = await fetch('https://jsonplaceholder.typicode.com/users'); const data = await response.json(); setUsers(data); } catch (behavior) { console.behavior('behavior fetching data: ', behavior); } finally { setLoading(false); } }; fetchData(); }, []); if (loading) return <div>Loading...</div>; return ( <ul> {users.map(user => ( <li key={user.id}>{user.name}</li> ))} </ul> ); }; export default UserList; ``` I have verified that the API endpoint is correct and returns data as expected. However, I suspect that the scenario might be related to the initial state of `users` being an empty array. I tried adding a check to ensure `users` is an array before mapping, but it didn't resolve the behavior. The behavior occurs specifically when the `users` state hasn't been set yet and is trying to render in the return statement. Any insights on how to fix this scenario or any best practices for handling async data fetching in React components would be greatly appreciated! My development environment is Ubuntu. My development environment is Windows. Is there a simpler solution I'm overlooking?