Common example for builder patter

builder.js

class BigMacMenu {
 constructor(build) {
      this.menuName = build.menuName;
    this.drink = build.drink;
    this.mainDish = build.mainDish;
    this.sideDish = build.sideDish;
 }
 static get Builder() {
    class Builder {
       constructor(menuName) {
          this.menuName = menuName;
       }
        addDrink(drink) {
          this.drink = drink;
          return this;
       }
        addMainDish(mainDish) {
          this.mainDish = mainDish;
          return this;
       }
        addSideDish(sideDish) {
          this.sideDish = sideDish;
          return this;
       }

       build() {
          return new BigMacMenu(this);
       }
    }
    return Builder;
 }
}



let menu = new BigMacMenu.Builder(“Menu with juice”)
.addDrink(“Cola”)
.addMainDish(“Big Mac”)
.build();