Getting Input from Users

The video tutorial covers how to handle user input in Node.js applications using command line arguments. It explains the process of running Node.js scripts with arguments, accessing these arguments through process.argv, and using them to perform actions like adding or removing notes. The tutorial also discusses the importance of parsing command line options and suggests using NPM packages to simplify this task.

Why is user input essential in a Node.js application?

• To make the application run faster

• To reduce the number of lines of code

• To increase the file size of the application

• To make the application interactive and dynamic

Which global variable in Node.js is used to access command line arguments?

• window

• document

• global

• process

What does the 'argv' property of the process object represent?

• An array containing command line arguments

• A string containing the application name

• A boolean indicating if the process is running

• A number representing the process ID

How can you determine the action to be taken by a Node.js application using command line arguments?

• By using a switch statement on the process object

• By using an if statement to check the command argument

• By logging all arguments to the console

• By checking the first argument in the argv array

What is the purpose of using an NPM package for parsing command line arguments?

• To reduce the number of command line arguments

• To make the application run slower

• To increase the complexity of the application

• To avoid writing and maintaining custom parsing code