how to install npm with other package code example

Example 1: how to import npm packages in node.js?

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

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

Example 2: how to install node_module

ls node_modules

//this command above is typed when you install a new vueJS project and dont have a 'node_modules', then run npm run serve