Modular Code Organization in JavaScript

In JavaScript, modular code organization refers to the practice of dividing code into smaller, reusable modules. This facilitates the maintainability and scalability of applications.

Syntax:

You can create modules in JavaScript using the following mechanisms:

import: Used to import functionalities from other modules.

export: Used to export functionalities from a module so they can be used in other modules.

Modules allow you to keep your code organized and avoid naming conflicts by dividing code into smaller, specialized files.

Purpose:

Improve code organization by dividing it into smaller units.
Enable code reuse by exporting and importing functionalities.
Facilitate the maintainability and scalability of complex projects.

Exercises

Exercise 1:

Complete the code in the editor to modularize the code and display the message "¡Hola desde el módulo!" on the page.

* Write the code below. Correct characters will be shown in green and incorrect ones in red.

// main.js
import { greet } from './greetings.js';
greet();

// greetings.js
export const greet = () => {
  console.log("Hello from the module!");
};

What keyword is used to import functionalities from another module?

JavaScript Concepts and Reference

JavaScript Intro

Control Structures

Functions

Objects in JavaScript

Arrays

DOM (Document Object Model)

Error Handling

Promises and Asynchronicity

Modules in JavaScript

ES6 and Advanced Features

Other Important Concepts

What is modular code in JavaScript? What are modules in JavaScript? How to import modules in JS? How do modules work in JavaScript? JavaScript operators ECMAScript modules Mds JavaScript Code for JavaScript JavaScript module Node JS Export JavaScript In JavaScript