1
2
3
4
5
6
7
8
9
10
11
12
async function fetchUserData(userId) {
  // API endpoint for user data
  const url = `https://api.example.com/users/${userId}`;
  
  // Error handling with try/catch
  try {
    const response = await fetch(url);
    
    if (!response.ok) {
      throw new Error(`HTTP error! Status: ${response.status}`);
    }
    
    const data = await response.json();
    return data;
  } catch (error) {
    console.error('Failed to fetch user data:', error);
    throw error;
  }
}

This example shows an asynchronous JavaScript function that fetches user data from an API and includes proper error handling with try/catch blocks.