I'm pretty sure to program in Javascript you need to understand that primitives are passed as values, while objects are essentially passed by pointers, and if y

I'm pretty sure to program in Javascript you need to understand that primitives are passed as values, while objects are essentially passed by pointers, and if you modify one inside the callee, the caller will see the modifications. Understanding this fact does not strictly imply having a basic understanding of memory, but it gets pretty close to it. I would personally be weary of some who calls itself a programmer or software engineer and couldn't write this article themselves.