// Function that returns a promise
const fetchUser = (id) => {
  return new Promise((resolve, reject) => {
    setTimeout(() => {
      if (id > 0) {
        resolve({ id, name: `User ${id}` });
       } else {
        reject(new Error('Invalid user ID'));
       }
     }, 1000);
  });
};

// Using async/await
async function getUserData(id) {
  try {
    console.log('Fetching user...');
    const user = await fetchUser(id); // Waits for the promise to resolve
    console.log('User data:', user);

    // You can use the result directly
    return `${user.name}'s profile`;
  } catch (error) {
     // Handle errors with try/catch
     console.error('Error fetching user:', error.message);
     return 'Guest profile';
   }
}

// Async functions always return promises
console.log('Starting...');
getUserData(1)
  .then(result => console.log('Result:', result))
  .catch(error => console.error('Unexpected error:', error));
console.log('This runs before getUserData completes');