What are async iterables in Node.js?

What are async iterables in Node.js?

Async iterables are a way to work with asynchronous data streams in Node.js, allowing you to iterate over data that is fetched or generated asynchronously.

Can you give me an example of how to use async iterables?

Sure! You can create an async iterable using a generator function. Here's a simple example:

async function* asyncGenerator() {
    for (let i = 0; i < 5; i++) {
        await new Promise(resolve => setTimeout(resolve, 1000)); // Simulate async operation
        yield i;
    }
}

for await (const value of asyncGenerator()) {
    console.log(value);
}

This will log numbers 0 to 4, one every second.

What are the benefits of using async iterables?

Async iterables provide a clean and efficient way to handle asynchronous data, allowing for better readability and easier error handling compared to traditional callbacks or promises.

Are there any limitations to async iterables?

Yes, async iterables can only be used in environments that support ES2018 or later. Additionally, they may not be as performant as other methods for certain use cases.