3. Alternative Methods for Optional Function Parameters in JavaScript
   Optional Function Parameters:In JavaScript, you can define functions where some parameters are not required for the function to work
4. Alternative Methods for Setting Default Values in TypeScript Objects
   Understanding the Concept:When passing objects as arguments to functions in TypeScript, you can provide default values for their properties
5. Understanding the Code Examples for Command Line Arguments in Node.js
   What are command line arguments?Extra pieces of information you provide when running a program from the command line.Used to customize the program's behavior