When should I use synchronous or asynchronous iterables?

Can you explain when to use synchronous versus asynchronous iterables?

Sure! Synchronous iterables are used when you need to process items one at a time, blocking until each item is ready. Asynchronous iterables, on the other hand, are ideal for handling streams of data where you want to avoid blocking, allowing other operations to run while waiting for data.

What are some examples of synchronous iterables?

Examples of synchronous iterables include arrays and strings in JavaScript. You can loop through them using a for...of loop or methods like map and filter.

And what about asynchronous iterables?

Asynchronous iterables are often used with streams, such as reading files or fetching data from APIs. You can use for await...of to iterate over them without blocking the main thread.

How do I decide which one to use in my code?

It depends on your use case. If you need to handle data that arrives over time or from an external source, go for asynchronous iterables. If you're working with a fixed set of data, synchronous iterables are usually sufficient.