Is it possible to determine if an object created with Object.create inherits from Array in JavaScript?

Question

Identifying which objects are which is complicated in JavaScript, and figuring out which objects are arrays has something of a hacky solution. Fortunately, it manages to wor

Answer 1

it functions like an array, and for all purposes, it is an array

No. It has no auto-updating length property. See this article why it's quite impossible to subclass Array.

Is there any way to figure out if an object inherits from a particular prototype? I suppose you could iterate through the prototypes, but it feels a tad hacky.

That's just how to do it. A cleaner approach than a self-written function would be to use the instanceof operator:

arr instanceof Array; // true