TUE

(() => { interface CityDropdown { value: string; selected: boolean; } interface ZipcodeDropdown { value: number; selected: boolean; } // 서울시인천시광주시 function createDropdown(list: CityDropdown[]): string { let result = ""; result += ""; list.forEach((item) => { result += `${ item.value }`; }); result += ""; return result; } var cityList: CityDropdown[] = [ { value: "서울시", selected: false }, { value..

// 클래스의 타입 지정에 인터페이스 사용 (() => { interface Score { kor: number; eng: number; sum(): number; avg(): number; } class HighSchool implements Score { kor: number; eng: number; constructor(kor: number, eng: number) { this.kor = kor; this.eng = eng; } sum() { return this.kor + this.eng; } avg(): number { return this.sum(); } } const Kim = new HighSchool(100, 90); console.log(Kim.sum(), Kim.avg()); })();