What are async hooks and how do they ensure compatibility?

What are async hooks and how do they work in Node.js?

Async hooks are a mechanism in Node.js that allow you to track asynchronous resources. They provide a way to create a context for asynchronous operations, enabling you to maintain state across async calls.

How do async hooks ensure compatibility with different async patterns?

Async hooks are designed to work with various async patterns in Node.js, such as callbacks, promises, and async/await. They help maintain context by allowing you to track the lifecycle of async operations.

Can you give an example of using async hooks?

Sure! Here's a simple example: you can create an async hook that logs when an async operation starts and ends, helping you trace the flow of your application.

Are there any performance implications when using async hooks?

Yes, while async hooks are powerful, they can introduce some overhead. It's important to use them judiciously to avoid performance bottlenecks.