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Node.js Local Module

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  • Difficulty Level : Basic
  • Last Updated : 13 Oct, 2021
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Node.js comes with different predefined modules (e.g. http, fs, path, etc.) that we use and scale our project. We can define modules locally as Local Module. It consists different functions declared inside a JavaScript object and we reuse them according to the requirement. We can also package it and distribute it using NPM.

Defining local module: Local module must be written in a separate JavaScript file. In the separate file, we can declare a JavaScript object with different properties and methods.

Step 1: Creating a local module with filename Welcome.js

const welcome = {
    sayHello : function() {
        console.log("Hello GeekforGeeks user");
  currTime : new Date().toLocaleDateString(),
  companyName : "GeekforGeeks"
module.exports = welcome

Explanation: Here, we declared an object ‘welcome’ with a function sayHello and two variables currTime and companyName. We use the module.export to make the object available globally.

Part 2: In this part, use the above module in app.js file.

var local = require("./Welcome.js");

Explanation: Here, we import our local module ‘sayHello’ in a variable ‘local’ and consume the function and variables of the created modules.

Hello GeekforGeeks user
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