TypeScript Intro

https://www.typescriptlang.org/ko/

https://nestjs.com/

1.ts file

let myName: string = "L7";

myName = "7";

console.log(myName);

Terminal

npm install typescript
npx tsc 1.ts
node 1.js
npx tsc 1.ts 다시 한 번 쳐서 확인

1.ts

var myName: string = "h662";
var age: number = 17;
var isRich: boolean = false;

console.log(myName);
console.log(age);
console.log(isRich);