First day of clonecoding

First day of youtube clone coding.

Node.js

- JavaScript which can be used outside of browser.
- Built by Ryan Dahl.
- Became so popular because programmers are familiar with JS language due to the popularity of web browser.

NPM? (Node Package Manager)

- Package manager for Node.js.
- default management program which comes with Node.js
- Similar program: yarn (made by facebook)
*_package_ is like libraries of python. To make code easier and efficient.