Builder Pattern in JS

BuilderPattern.js

function Meal() {
  this.make = function(builder){
    builder.step1();
    builder.step2();
    builder.step3();
    builder.step4();
    return builder.get();
  }
}
 
function MealBuilder(pattie,side,soda) {
   this.meal = null;
   this.step1 = function() {
        this.meal = new Order();
    };
 
    this.step2 = function() {
        this.meal.addBurger(pattie);
    };

    this.step3 = function(){
      this.meal.addSide(side);
    }
    
    this.step4 = function(){
      this.meal.addSoda(soda);
    }
 
    this.get = function() {
        return this.meal;
    };
}
 
function Order() {
    this.burger = null;
    this.side = null;
    this.soda = null; 
 
    this.addBurger = function(pattie) {
        this.burger = pattie;
    };
 
    this.addSide = function(side) {
        this.side = side;
    };

    this.addSoda = function(soda){
      this.soda = soda;
    }

    this.display = function(){
      console.log(`You meal has a ${this.burger} burger, ${this.side} on the side, and a ${this.soda}.`)
    }
}
 
var meal = new Meal();
var mealBuilder = new MealBuilder("chicken","curly fries","coke");
var chickenBurgerMeal = meal.make(mealBuilder);
chickenBurgerMeal.display();