What are async iterators and how are they used in real-world applications?

What are async iterators and how are they used in real-world applications?

Async iterators are a way to handle asynchronous data streams in JavaScript. They allow you to iterate over data that may not be available immediately, such as data from a network request or a file read operation.

Can you give me an example of how to implement an async iterator?

Sure! Here's a simple example: you can create an async iterator that fetches data from an API. You define an async function that uses the for await...of loop to iterate over the results.

What are some real-world scenarios where async iterators are beneficial?

Async iterators are beneficial in scenarios like streaming data from APIs, processing large files in chunks, or handling user input in real-time applications.

Are there any performance considerations when using async iterators?

Yes, while async iterators can improve code readability and manage asynchronous data flow, it's important to handle errors properly and avoid blocking the event loop to maintain performance.