prototype.js

function Parent() {
  this.name = 'Parent'
}

Parent.prototype.getName = function() {
  return `Mr. ${this.name}`
}

function Child() {
  Parent.apply(this);
  this.name = 'Child'
}

Child.prototype = Parent.prototype;

Child.prototype.getName = function() { // what will happen?
  return this.name;
}