The constructor property can be gotten by referencing it explicitly, or by iterating over all properties of the object (not just enumerable properties), with Object.getOwnPropertyNames.

The [[Prototype]] property is equivalent to the value returned by Object.getPrototypeOf, so you can call that to access the prototype object and iterate through it too, if you want.

Perhaps something like:

const recursiveLogAllProperties = (obj) => {
  Object.getOwnPropertyNames(obj).forEach(prop => console.log(prop, obj[prop]));
  const proto = Object.getPrototypeOf(obj);
  if (proto === Object.prototype) return;
  console.log('------ Prototype:');
  recursiveLogAllProperties(proto);
}
const arr = [1, 2];
recursiveLogAllProperties(arr);

The [[Scopes]] internal property is not accessible from JavaScript.