What are the differences between async iterators and regular iterators?

What are the differences between async iterators and regular iterators?

Regular iterators allow you to iterate over data synchronously, while async iterators enable asynchronous iteration, which is useful for handling data that arrives over time.

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

Sure! Async iterators are great for working with streams of data, like reading files or fetching data from an API where responses may take time.

How do I implement an async iterator in JavaScript?

You can implement an async iterator by defining an object with a next method that returns a promise. Here's a simple example:

async function* asyncGenerator() {
  yield await fetchData();
  yield await fetchMoreData();
}

What are the benefits of using async iterators over regular ones?

The main benefits include better handling of asynchronous data, improved performance in I/O operations, and more readable code when dealing with streams.