Summary

In this chapter, we’ve covered asynchronous operation orchestration patterns with Promises and async/await to manage sequential and parallel operations. We also covered advanced patterns such as request cancellation, implementing timeouts, the difference between throttling and debouncing, and finally, how to use batching in an asynchronous operation context.

In order to manage sequential asynchronous operations, we can use a Promise-based approach with Promise().then(), async/await, or mix both approaches. This helps keep our code simple to reason about. For parallel execution, we can leverage Promise.all() with Promise.then() or async/await. We also have multiple approaches to maintaining response data across asynchronous operations.

We can leverage AbortController to cancel requests. We implemented a timeout for the fetch response time using AbortController and setTimeout. Stopping in-flight requests is a useful cleanup step that can improve performance by reducing...