how to install an npm package code example

Example 1: npm install package globally

#Syntex
npm install packagename -g

#example
npm install express -g

Example 2: how to install latest version of npm package

//For global packages 
npm i -g <package name>@latest
npm i -g express@latest

//For loacal packages
npm outdated
npm update

//Manually updating local packages
npm i <package name>@latest
npm update "react" "react-dom"

Example 3: how to install any package in node.js

#how to install any specific package in nodejs Application
# Syntex
npm install packagename

# example:
npm install express
npm i express

#if you install globally then type 
npm install express -g

Example 4: install an npm package

npm install package-name

To save as a dependency:
npm install package-name --save