What are async operations in Node.js?

What are async operations in Node.js?

Async operations in Node.js allow non-blocking execution, enabling multiple tasks to run concurrently.

Can you explain how callbacks work in async operations?

Callbacks are functions passed as arguments to other functions, executed after an async operation completes.

What about Promises? How do they improve async handling?

Promises represent a value that may be available now, or in the future, improving readability and error handling.

How do async/await syntax fit into this?

Async/await allows you to write asynchronous code that looks synchronous, making it easier to read and maintain.