타입 종류 (TypeScript Types)01. 타입 종류- 문자let str: string = '문자열'let str: string;let name: string = '김가을';let hello: string = `안녕하세요. ${blue}님`;- 숫자let num: number = 123let num: number; // undefinednum = 123; // 123console.log(num);let integer: number = 6;let float: number = 3.14;let hex: number = 0xf00d;let infinity: number = Infinity;let nan: number = NaN;- 불리언let bool: boolean = truelet bool: bool..