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React 18: guide with Dynamic Component Rendering on Conditional State Change

👀 Views: 35 đŸ’Ŧ Answers: 1 📅 Created: 2025-06-18
react react-hooks conditional-rendering javascript

I'm working with a scenario with dynamically rendering components based on conditional state changes in React 18... I have a parent component that manages a toggle state which determines whether to show a child component or not. However, when I toggle the state to show the child component, it appears briefly before disappearing, and I see the following warning in the console: `Warning: want to update a component (ChildComponent) while rendering a different component (ParentComponent)`. Here's a simplified version of my code: ```jsx import React, { useState } from 'react'; const ChildComponent = () => { return <div>Child Component</div>; }; const ParentComponent = () => { const [showChild, setShowChild] = useState(false); const toggleChild = () => { setShowChild((prev) => !prev); }; return ( <div> <button onClick={toggleChild}>Toggle Child</button> {showChild && <ChildComponent />} </div> ); }; export default ParentComponent; ``` I've tried wrapping the `setShowChild` call within a `useEffect` hook to handle side effects, but the scenario continues. I also checked that there are no asynchronous state updates that could interfere with the rendering logic. Is there a recommended approach to handle this kind of dynamic rendering without running into this warning? Any insights on best practices or patterns for managing this kind of conditional component rendering would be greatly appreciated. I'm working with Javascript in a Docker container on Linux.