👀 Views: 99 💬 Answers: 1 📅 Created: 2025-06-15

react useEffect async-await state-management JavaScript

I've been banging my head against this for hours. I've been struggling with this for a few days now and could really use some help. I've encountered a strange issue with I'm working with an scenario with an infinite loop in a React component when using `useEffect` with `async/await`... I'm trying to fetch data from an API and set the state based on that data. Here's my code snippet: ```javascript import React, { useState, useEffect } from 'react'; const MyComponent = () => { const [data, setData] = useState(null); const [loading, setLoading] = useState(true); useEffect(() => { const fetchData = async () => { setLoading(true); 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); } finally { setLoading(false); } }; fetchData(); }, [data]); // <-- This line causes the infinite loop if (loading) return <div>Loading...</div>; return <div>{JSON.stringify(data)}</div>; }; export default MyComponent; ``` The question seems to stem from the dependency array in the `useEffect` hook. I initially thought that including `data` would allow it to trigger the effect only when `data` changes, but instead, it creates an infinite loop because setting `data` triggers another render, which in turn calls the `fetchData` function again. Removing `data` from the dependency array stops the loop, but I'm unsure of how to correctly manage dependencies when fetching data asynchronously. What is the best approach to solve this scenario without causing repeated fetch calls? I'm coming from a different tech stack and learning Javascript. Thanks for taking the time to read this! The project is a CLI tool built with Javascript. Any ideas what could be causing this?