//MVC: Model - View - Controller architecture pattern
- MEAN
-MongoDB, Express, Angular(google), Node.js
- LAMP(what ppl would do before)
-Linux(Node.js)
-Apache(Express.js → web server)
-MySQL(MongoDB → persistence layer)
-PHP or Python or Perl (Angular → User Interface)
- MERN stack
same as MEAN with React.js(face book)
Angular is still versatile but React is more popular
//bottle necking(병목현상)
//type script is a part of Javascript
- 3 tier architecture for developing Web App
- Data (model)
- Presentation (view)
- Logic (controller) → client side
- diff btw STATIC and DYNAMIC website:
ex. value of the stock changing ← Dynamic Web site (using AJAX)
//ajax 를 이용해서 조금 더 dynamic 하고 user friendly 한 web site개발 가능
- var, let const 차이:
-var: 재선언, 재할당 가능(e.g. var a = a;, var a = b;)
-let: 재할당 가능(e.g. var a = a;, a = b;)
-const: 둘다 불가능 (e.v. var a = a;)
<ㅇevent-driven programming>
- Thread pool system이란:
-multi threading? can manage events or task at same time
one task → one thread
other event → another thread
- intro to npm
- npm(node packaged manager):
Node.js로 만들어진 모듈을 웹에서 받아서 설치하고 관리해주는 프로그램
//package는 모듈이라고도 불리는데 패키지나 모듈은 프로그램보다는 조금 작은 단위의 기능들을 의미
- Mongo DB
- NoSQL(비정형, no relations, no JOIN query)
- Replica set(Primart - Secondary…)
- Primary only can write
- Provide data redundancy, recover from hardware failure.
- Vertical Scaling(when not too heavy) ↔ Horizontal Scaling(when big)
