Typed Arrays

Typed arrays have _huge_ memory and cpu advantages over JavaScript Arrays.

Have you considered typed array usage? A project I'm working favors typed arrays over JavaScript arrays. Both for cpu speed and for memory efficiency.

And an extreme case, rather than using an Array of Objects, we use a single Object of Typed Arrays, where each variable in the object corresponds to a Typed Array. So foo[i].var === foo.var[i]. In a sense, it is struct-like.