Install node. js

1. Node. js installed under Window

Install Git to make it easy to use the command line.

Website: http://www.git-scm.com/download/

Install directly after download

Then install node. js

https://nodejs.org/download and install directly from the homepage, then enter CMD to verify

Input Node-v output version number, NPM-V output version number, indicating successful installation

2. Install node. js under Linux

Installation Environment Requirements

GCC 4.2 or newer

g++4.2 or newer

Python 2.6 or 2.7

GNU make 3.81 or newer

Libexecinfo (FreeBSD and OpenBSD only)

First step: Install the latest Nodejs and NPM

sudo add-apt-repository ppa:chris-lea/node.js
sudo apt-get update
sudo apt-get install Nodejs

Part II: Detection version

Node--version

Npm-v

Part III: Upgrading NPM

sudo npm install-g npm

Install node. js