best javascript oop exemples code example

Example 1: js oop

function Person(name) {
  this.name = name;
  this.greeting = function() {
    alert('Hi! I\'m ' + this.name + '.');
  };
}

Example 2: js oop

let names = {
    fname: "Dillion",
    lname: "Megida"
}
console.log(names.fname);
console.log(names.hasOwnProperty("mname"));
// Expected Output
// Dillion
// false