~hackernoon | Bookmarks (3)

Callbacks are 4.8x faster when running them parallel over async/await in parallel. And only 1.9x faster when we run sequential callbacks.

Most of the time, just keep it simple. Combine your composite keys into a string key for storage in a map or cache if that is the easiest option and performance is not a major concern. In scenarios where performance is critical, make sure to do your own testing. But using nested maps will be the most performant in most cases. It will also...