javascript

Critical Patterns

Async/Await (REQUIRED)

// ✅ ALWAYS: Use async/await over .then() chains
async function fetchUserData(userId) {
  try {
    const response = await fetch(`/api/users/${userId}`);
    if (!response.ok) throw new Error('User not found');
    return await response.json();
  } catch (error) {
    console.error('Failed to fetch user:', error);
    throw error;
  }
}

// ❌ NEVER: Nested .then() chains
fetch(`/api/users/${userId}`)