What are the performance differences between async and sync code?

What are the performance differences between async and sync code?

Async code allows multiple operations to run concurrently, improving performance in I/O-bound tasks, while sync code runs sequentially.

Can you give me an example of when to use async over sync?

Sure! Use async for tasks like fetching data from an API, where waiting for a response can block other operations.

Are there any downsides to using async code?

Yes, async code can be more complex to write and debug, and it may lead to callback hell if not managed properly.

How does async code affect CPU-bound tasks?

For CPU-bound tasks, async may not provide significant benefits, as these tasks require processing power and can block the event loop.