Apr 10, 2025 · To demonstrate usage of modules, we've created a set of examples that you can find on GitHub. These examples demonstrate a set of modules that create a <canvas> element on a webpage, and then draw (and report information about) different shapes on the canvas.

A classic script is just a standard JavaScript script as you know it. A module script is one that contains an ES6 module, i.e. it uses (or: can use) import and export declarations. From §8.1.3.8 Integration with the JavaScript module system:

JavaScript modules allow you to break up your code into separate files. This makes it easier to maintain a code-base. Modules are imported from external files with the import statement.

Jan 29, 2024 · Modules emphasize local scope, promoting encapsulation by limiting the visibility of variables and functions to within the module, enhancing code integrity. Namespace operate on global scale, providing a way to organize code globally and reduce the risk of naming collisions.

Jul 28, 2021 · Modules are independent and self-contained chunks of code. You create them by splitting up a larger program into logical parts or dependencies. Modules should be independent, specialized, and reusable. You use the import and export keywords to interchange functionalities between modules in JavaScript.

Apr 14, 2022 · In this article we're going to take a look at modules in JavaScript. Modules are a technique heavily used in today's software design/architecture. First we're going to learn what they are and the different types of modules that exist. Then we're going to …

Feb 28, 2024 · The primary difference between CommonJS and ES Modules is the module loading system. CommonJS uses synchronous loading, while ES Modules uses asynchronous loading.

Aug 1, 2015 · A module is a unit of software. This refers - depending on the context - to a self-contained part of source code, to the file that the former is found in, or to the module object (data structure) said code declares (or generates when executed). Typically there's a 1:1:1 relation between these, and this is a good practise.

In this comprehensive article, we‘ll unpack the journey of JavaScript modules and everything you need to know about the two main standards – CommonJS and ES Modules. Let‘s briefly reflect on the history that led to modular architecture becoming integral for JavaScript developers…

Mar 19, 2025 · For browser projects: Use ES Modules (import/export). For Node.js projects: If working with modern tooling, use "type": "module" and .mjs. If using older packages, stick to .cjs. For compatibility: Use .cjs for CommonJS and .mjs for ES Modules when mixing both.