Organizing Node.js code into reusable modules is fundamental for building maintainable applications, and understanding the module system is crucial for every Node.js developer. With 10 years of experience in Node.js development since 2014 and as the creator of CoreUI, I’ve built countless server-side applications and npm packages using module systems. From my expertise, CommonJS remains the traditional and widely-supported module format in Node.js, using require() to import and module.exports to export functionality. This approach is synchronous, battle-tested, and compatible with the vast majority of npm packages in the ecosystem.

Importing and exporting modules in Angular enables modular application architecture by allowing you to organize features into separate modules and share functionality across the application. As the creator of CoreUI, a widely used open-source UI library, I’ve structured countless Angular applications using proper module imports and exports for scalable enterprise solutions. From my expertise, the most effective approach is using imports array for dependencies and exports array for sharing components with other modules. This method provides clear module boundaries and efficient dependency management.