What are the differences between async and sync iteration in Node.js?

What are the differences between async and sync iteration in Node.js?

In Node.js, synchronous iteration blocks the execution until the operation completes, while asynchronous iteration allows other operations to run concurrently.

Can you give me an example of synchronous iteration?

Sure! A simple example of synchronous iteration is using a for loop to process an array, where each iteration waits for the previous one to finish.

And how does asynchronous iteration work?

Asynchronous iteration can be done using for await...of with async iterators, allowing you to handle promises without blocking.

What are the benefits of using async iteration?

The main benefits include improved performance and responsiveness, especially in I/O-bound operations, as it allows other tasks to run while waiting.

Are there any downsides to using async iteration?

Yes, async iteration can introduce complexity in error handling and may require more careful management of control flow.