Command Line Arguments

process.argv contains the command-line arguments passed when the Node process was launched.

Overview

process.argv contains the command-line arguments passed when the Node process was launched.

Code Example

// node app.js arg1 arg2\nconst args = process.argv.slice(2);\nconsole.log(args);

Web Development Context

In modern web development, understanding Command Line Arguments 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.