Conditional Rendering in React
In React apps, you’ll often need to render different UI components conditionally based on certain state. For example, showing a login form if a user is not authenticated, or displaying different content based on configurable settings.
Here are useful patterns for conditional rendering in React:
If/Else Statements The standard JS if/else statement works in JSX too:
1 2 3 4 5 6 7 8 9 function App() { const loggedIn = false; if (loggedIn) { return <WelcomeMessage />; } else { return <LoginForm />; } } This will render either the WelcomeMessage or LoginForm component based on the value of loggedIn.