Solution: Compose Decorators Dynamically Based on Configuration

Solution explanation

• Lines 2–6: We define processOrder, a mock async service that simulates an order-processing delay. It represents our core business logic.

• Lines 9–16: We create withLogging(fn) to add visibility:

  • Logs the input arguments before execution.

  • Waits for the function result.

  • Logs the returned output afterward.

  • Returns the same result transparently.

• Lines 19–27: We define withTiming(fn) to measure performance:

  • Records the start time before calling the wrapped function.

  • Awaits its completion. ...