installing and using npm packages code example

Example 1: npm install package as developer dependency

npm install --save-dev package
# example:
npm install --save-dev nodemon

Example 2: how to install node dependencies

#how to install project dependecies when you download project

# example:
npm install

#NOTE:: by entering only this command your all dependecies will automatically installed.

Example 3: how to import npm packages in node.js?

//in cmd prompt: 
//npm i <package-name>

//defining package in code: 
const package = require("package-name")