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advanced patterns with Async/Await in Event Listeners in React Functional Components

👀 Views: 54 💬 Answers: 1 📅 Created: 2025-06-10
react async-await event-handling JavaScript

I'm working with an scenario where my async function inside an event listener does not behave as expected when used in a React functional component..... I'm trying to fetch data on button click using an async function, but I keep getting a 'want to read properties of undefined' behavior. Here's the relevant part of my code: ```javascript import React, { useState } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const fetchData = async () => { try { const response = await fetch('https://api.example.com/data'); const result = await response.json(); setData(result); } catch (behavior) { console.behavior('behavior fetching data:', behavior); } }; const handleClick = () => { fetchData(); }; return ( <div> <button onClick={handleClick}>Fetch Data</button> {data && <pre>{JSON.stringify(data, null, 2)}</pre>} </div> ); }; export default MyComponent; ``` I’ve confirmed that the API endpoint is valid and reachable. When I click the button, the console logs the behavior, but I'm not able to pinpoint why this is occurring. I also tried using `.then()` instead of async/await, and it worked correctly. Why does this happen with async/await in the context of an event listener? Is there an scenario with how the async function is being called? Any insights would be appreciated! For context: I'm using Javascript on Ubuntu. I'd really appreciate any guidance on this. I'm developing on CentOS with Javascript. Has anyone dealt with something similar?