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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


npm init

Creates a package.json file.


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.


Web development framework.


npm - Node.js Package Manager

Used to install node modules/programs.



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