is the following way also correct for constructor functions in javascript?

Question

let construct = function(name = "john", last = "marks") {
  return {
    name: name,
    last: last,
  };
};

let me = new construct("mike", "tyson");
console.log(me);

question from:https://stackoverflow.com/questions/65850550/is-the-following-way-also-correct-for-constructor-functions-in-javascript

Answer 1

You do not have a constructor function.

A constructor function is one you can call with the keyword new in order to produce a new instance of said function. However, yours that just produces plain objects with no inheritance:

Your implementation:

let construct = function(name = "john", last = "marks") {
  return {
    name: name,
    last: last,
  };
};

let me = new construct("mike", "tyson");
console.log(me instanceof construct); //false