oop javascript

1function Person(name) {
2  this.name = name;
3  this.greeting = function() {
4    alert('Hi! I\'m ' + this.name + '.');
5  };
6}

1var js = new JavaScript();
2js.isObjectOrientated = true;

1var salva = createNewPerson('Salva');
2salva.name;
3salva.greeting();

1const book = {   title: "Hippie",       author: "Paulo Coelho",     year: "2018"}

1let names = {
2    fname: "Dillion",
3    lname: "Megida"
4}
5console.log(names.fname);
6console.log(names.hasOwnProperty("mname"));
7// Expected Output
8// Dillion
9// false
10

1function DogObject(name, age) {
2    let dog = Object.create(constructorObject);
3    dog.name = name;
4    dog.age = age;
5    return dog;
6}
7let constructorObject = {
8    speak: function(){
9        return "I am a dog"
10    }
11}
12let bingo = DogObject("Bingo", 54);
13console.log(bingo);
14