ES Modules (import)

The modern, standard JavaScript module system. Enable via "type": "module" in package.json.

Overview

The modern, standard JavaScript module system. Enable via "type": "module" in package.json.

Code Example

import fs from "node:fs";\nexport const greet = () => "Hi";

Web Development Context

In modern web development, understanding ES Modules (import) is crucial. Node.js is widely used for building APIs, real-time applications, and microservices. Mastery of this concept allows you to build efficient, scalable, and secure backend systems.

Common Mistakes

• Blocking the event loop with heavy synchronous tasks.
• Exposing secrets in code instead of environment variables.
• Forgetting to handle promise rejections.

Next Steps

To solidify your understanding, review the related references and try out the practice challenges.