How can I use async iteration with streams in Node.js?

How can I use async iteration with streams in Node.js?

You can use the for await...of loop to iterate over streams asynchronously. This allows you to process data as it becomes available.

Can you show me a code example?

Sure! Here's a simple example:

const { Readable } = require('stream');

const readable = Readable.from(['Hello', ' ', 'World!']);

(async () => {
  for await (const chunk of readable) {
    console.log(chunk);
  }
})();

What if I want to handle errors during iteration?

You can wrap your iteration in a try-catch block to handle errors gracefully. Here's an example:

(async () => {
  try {
    for await (const chunk of readable) {
      console.log(chunk);
    }
  } catch (error) {
    console.error('Error during iteration:', error);
  }
})();

Are there any performance considerations I should be aware of?

Yes, when using async iteration with streams, be mindful of backpressure and ensure that your processing logic can keep up with the data flow.