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Handling nested callbacks in React with useEffect and avoiding infinite loops

👀 Views: 1578 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-04
react useeffect state-management javascript

I'm trying to use the `useEffect` hook in my React functional component to fetch data from an API and then update the component state based on that data. However, I'm running into an infinite loop scenario because of the way I'm handling my state updates within the effect. Here's a snippet of what I've tried: ```javascript import React, { useEffect, useState } from 'react'; const MyComponent = () => { const [data, setData] = useState([]); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { const response = await fetch('https://api.example.com/data'); const result = await response.json(); setData(result); setLoading(false); }; fetchData(); }, [setData]); // Using setData as a dependency here if (loading) return <div>Loading...</div>; return ( <ul>{data.map(item => <li key={item.id}>{item.name}</li>)}</ul> ); }; export default MyComponent; ``` Currently, I have included `setData` as a dependency in the dependency array of `useEffect`. However, I keep getting the behavior `Warning: Maximum update depth exceeded`. I suspect that the state update might be causing the effect to re-run, which then triggers another update, leading to this infinite loop. I've also tried removing `setData` from the dependency array, but that leads to the data not being updated properly after the first fetch. Is there a best practice for managing nested callbacks and state updates in `useEffect` without causing infinite loops? I've looked through the React documentation, but I'm still unclear on how to resolve this specific situation. Any insights or patterns I should follow would be greatly appreciated! For context: I'm using Javascript on macOS. I'd really appreciate any guidance on this.