Node.js npm Packages

Aim

To install and use an external package in Node.js using npm.

What is npm?

npm stands for Node Package Manager. It is used to install and manage packages in Node.js applications.

Commands

npm init -y
npm install lodash
node npm-example.js
    

Example

const _ = require("lodash");

const numbers = [10, 20, 30, 40];

const total = _.sum(numbers);

console.log("Numbers:", numbers);
console.log("Sum:", total);
    

Expected Output