what is the arguments variable an instance of?

Question

MDN says it is \"an Array like object\" but does not say what it is an instance of.

It is not an HTMLCollection or NodeList.

If I call

Answer 1

You can retrieve the name of the function where arguments returned from using callee.name

function test() {
  this.args = arguments;
}

var obj = new test();

console.log(obj.args.callee.name);

---

function test() {
  return arguments
}

console.log(test().callee.name);

See also Why was the arguments.callee.caller property deprecated in JavaScript? , Arguments object