Node.js Notes

Node.js Project Home Page

What is Node.js?

Node.js is a JavaScript runtime, which means you can use it to execute JavaScript outside the browser.

It's an Open Source server environment that runs JavaScript; this means you can run JavaScript on a machine and not just in the browser.

A Javascript runtime for servers.

Uses non-blocking I/O model - operates on single thread, can handle tens of thousands of connections concurrently. Uses Event listener.

Create a Basic Web Server

https://youtu.be/U8XF6AFGqlc?t=993

npm init

Creates a package.json file.

https://www.youtube.com/watch?time_continue=924&v=U8XF6AFGqlc

Command Line

C:/Program Files/nodejs/node.exe

This is a command line where you can run JavaScript.

GetElementById does not work because this is JavaScript without the browser.

Express

Web development framework.

npm - Node.js Package Manager

Used to install node modules/programs.

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