📌interface 확장하기

interface 확장할 extends 기존의 {
	.
	.
}

interface Animal {
  type: string;
}

interface Camel extends Animal {
  place: string;
  feed: string;
}

//확장된 Camel interface의 모습

interface Camel {
  type: string;
  place: string;
  feed: string;
}

📌 여러 interface로 확장하기

interface Car {
	color: string;
	wheels: number;
	start(): void;
}

interface Toy {
	name: string;
}

interface Toycar extends car, Toy {
	price: string;
}

//확장된 Toycar interface의 모습

interface Toycar {
	color: string;
	wheels: number;
	start(): void;
	name: string;
	price: string;
}