What are the differences between CommonJS and ES6 modules?

What are the main differences between CommonJS and ES6 modules?

CommonJS is a module format used primarily in Node.js, while ES6 modules are part of the ECMAScript 2015 standard. CommonJS uses require() to import modules and module.exports to export them, whereas ES6 uses import and export syntax.

Can you explain how to use ES6 modules in a project?

To use ES6 modules, you can simply use the import statement at the top of your JavaScript file to bring in other modules. For example: import { myFunction } from './myModule.js'; Make sure to include the .js extension.

Are there any compatibility issues with ES6 modules?

Yes, ES6 modules are not supported in all environments, especially older browsers. You may need to use a transpiler like Babel or a bundler like Webpack to ensure compatibility.

Which module system is better for performance?

Performance can vary based on the use case. CommonJS modules are loaded synchronously, which can be faster in Node.js, while ES6 modules are loaded asynchronously, which can improve performance in web applications.