Fetch API & Handling JSON Responses

What error handling pattern is implemented here?

class HTTPError extends Error {
  constructor(response) {
    super(`${response.status} for ${response.url}`);
    this.name = 'HTTPError';
    this.response = response;
  }
}

async function fetchJSON(url) {
  const response = await fetch(url);
  if (!response.ok) throw new HTTPError(response);
  return response.json();
}

Basic error logging
Error suppression
Custom error class
This implements a custom error class pattern: 1) Creates specific error type for HTTP failures, 2) Includes relevant response information in error, 3) Maintains proper error inheritance, 4) Enables specific error handling based on type, 5) Improves error debugging and logging, 6) Common pattern in API wrapper libraries.
Error retrying

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