Async/Await Syntax

What advanced pattern does this code implement?

async function retry(fn, retries = 3, delay = 1000) {
  try {
    return await fn();
  } catch (error) {
    if (retries === 0) throw error;
    await new Promise(r => setTimeout(r, delay));
    return retry(fn, retries - 1, delay * 2);
  }
}

Basic error handling
Exponential backoff with retries
This implements exponential backoff with retries: 1) Automatically retries failed operations, 2) Increases delay between attempts exponentially, 3) Limits maximum retry attempts, 4) Preserves original error if all retries fail, 5) Uses recursion for retry logic, 6) Common pattern for handling transient failures in network operations.
Promise chaining
Parallel execution

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