Don't think @memorize fit any case.

[mrdulin]

I saw you use first argument as key of cache.
What if the first argument is an object, like this:

const a = {};
const b = {c: {}}
String(a) //"[object Object]"
String(b) //"[object Object]"

Besides, can you provide any benchmark tests?
I don't think it fit any case.

[developit]

It only supports primitive values. This is the reason it is fast.