how to install npm packages

npm install npm@latest -g#Syntex
npm install packagename -g

#example
npm install express -g
#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 -gnpm install package-name -gnpm i -g <package>npm i <package>