Conditional Rendering

React lets you render content conditionally using JavaScript operators like if, ternary ( ? : ), or &&.

function Greeting({ isLoggedIn }) {
  return (
    <div>
      {isLoggedIn ? <p>Welcome back!</p> : <p>Please log in.</p>}
    </div>
  );
}

• Use ternary expressions for inline conditionals.
• && is useful for rendering something only when a condition is true.