React 18 Beginners Fco | Code Mosh

React 18’s strict mode mounts/unmounts/mounts in dev – be aware. createRoot (instead of ReactDOM.render) index.js

No () => unless passing arguments. import useState, useEffect from 'react'; function MovieFacts() const [fact, setFact] = useState(''); code mosh react 18 beginners fco

If two components need same data → move state to closest common parent. React 18’s strict mode mounts/unmounts/mounts in dev –

import createRoot from 'react-dom/client'; import App from './App'; const root = createRoot(document.getElementById('root')); root.render(<App />); function handleClick() setCount(c => c + 1); setFlag(f => !f); // React 18: renders once unless passing arguments. import useState

Here’s a structured inspired by the teaching style of Code with Mosh (clear, practical, project-based).