Chapter II: Installation of Nodejs and Hello World

First, the installation of the environment

node. JS Installation

?: http://nodejs.cn

? Install (Win system installation system directly click Next ... Next---complete)

Test

DOS under

View NPM version: Npm-v

View Nodejs version: Node-v

The installation was successful.

Two: Hello World

1. Open a common text editor where you enter

Console.log (' Hello world ');

2. Save the file as Helloworld.js.

3, in the directory where the file is empty, hold down the right mouse button, select "Open Command Window Here", execute node helloworld.js (or use the cmd command to enter the terminal, enter the Helloworld.js directory, execute node helloworld.js )

Successful execution.

Chapter II: Installation of Nodejs and Hello World