eadgnus

Nodejs 다운로드
https://nodejs.org/ko/download

1995 
- HTML, CSS, JavaScript (SpiderMonkey, JavaScriptCore, V8, Chakara)

2009
- 라이언 달(1981)
- 자바스크립트로 프론트도 구성하고, 백엔드도 구상하면 하나의 언어로 풀스택을 구성할 수 있지 않을까?
- JavaScript everywhere


node.js의 특징
            browser                         nodejs
        -------------------------
        DOM APIs                        console
        Network APIs                 Crypto
        Audio/Video APIs           HTTP
        Storage APIs                file
        console.log                   OS
        ...                                ...

- 가장 많이 사용하는 언어(플랫폼)로 선정(2021, 스택오버 플로우 조사): 전세계 50%
- 넷플릭스, 우버, 이베이, 페이팔, 쿠팡, 네이버, 카카오톡 ..
- JavaScript Runtime, Single Thread, Non-Blocking I/O, Event-Driven 

    - JavaScript Runtime 엔진
        - JavaScript 엔진
        - 오픈 소스
        - C++
        - high performance
    - Single Thread
    - Non-Blocking I/O
    - Event-Driven