Async Generators
Async generators are a JavaScript feature that combines async/await with generator functions, allowing you to create iterable sequences that can yield values asynchronously. They enable efficient handling of asynchronous data streams, such as reading from a file or fetching paginated API results, by pausing execution until each value is ready without blocking the main thread.
Developers should learn async generators when working with asynchronous data sources that produce multiple values over time, like real-time event streams, database queries with large result sets, or web socket connections. They are particularly useful in Node.js or modern browser environments for managing backpressure and memory efficiency in data-intensive applications, as they allow lazy evaluation and on-demand processing of async sequences.