One of the features that landed in ECMAScript 2024 was the ability to group synchronous iterables (e.g. arrays) into objects or maps. Let's take a look!

In this article I'll be taking a look at JavaScript iterables, iterators, and the two protocols that govern them. Iterators control how an object can be iterated over, while an iterable can be fed to constructs such as for-of or spread syntax.