Error Handling in Async Code

What error handling best practice is shown here?

class APIError extends Error {
  constructor(message, status, code) {
    super(message);
    this.name = 'APIError';
    this.status = status;
    this.code = code;
  }
}

async function fetchData() {
  const response = await fetch('/api');
  if (!response.ok) {
    throw new APIError('API request failed', response.status, 'ERR_API');
  }
  return response.json();
}

Generic error handling
Custom error types
This demonstrates custom error types: 1) Creates domain-specific error classes, 2) Adds contextual information to errors, 3) Enables more precise error handling, 4) Maintains proper error inheritance chain, 5) Improves error debugging and logging, 6) Common practice in well-structured async applications.
Error suppression
Error logging

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