const cookie = { base: "cookie", madeIn: "korea" }; const chocochipCookie = { ...cookie, toping: "chocochip" }; const blueberryCookie = { ...cookie, toping: "blueberry" }; const starwberryCookie = { ...cookie, toping: "strawberry" }; console.log(chocochipCookie); // {base: "cookie", madeIn: "korea", toping: "chocochip"} console.log(blueberryCookie); // {base: "cookie", madeIn: "korea", toping: "..