JS Design Patterns - CONSTRUCTOR

constructor.js

// creating a new empty object
const a = new Object();

// defining a constructor
function User(id, name){
  this.id = id;
  this.name = name;
}

// creating a new object using the constructor
const myUser = new User(1, 'Bruce');

console.log(myUser); // User {id: 1, name: "Bruce"}

// or you can use ES6 classes
class Drink{
  constructor(price, calories){
    this.price = price;
    this.calories = calories;
  }
}

// now create a new user using the new keyword
const myDrink= new Drink(15, 200);

console.log(myDrink); // Drink {price: 15, calories: 200}