Modern JavaScript from the Beginning - Second Edition - CommonJS Modules

The video tutorial explains how to work with JS modules in Node.js, covering the creation of a utils file, exporting and importing modules using the require function, and handling multiple exports. It demonstrates creating and exporting functions, such as capitalizeWords and makeMoney, and shows how to import a class from a module. The tutorial emphasizes the use of module.exports for exporting and destructuring for importing multiple items.

What is the primary purpose of using CommonJS syntax in Node.js?

• To style the user interface

• To optimize server performance

• To handle database connections

• To manage and export modules

Which function is used to import a module in Node.js?

• import()

• fetch()

• require()

• load()

How can you access a specific function from a module that exports multiple functions?

• By using a while loop

• By using the import keyword

• By using destructuring with curly braces

• By using a for loop

What is the purpose of the 'capitalizeWords' function in the tutorial?

• To reverse the order of words in a sentence

• To convert all letters to lowercase

• To capitalize the first letter of each word in a sentence

• To remove spaces from a sentence

What is the convention for naming a class file in Node.js?

• Using a mix of uppercase and lowercase letters

• Using all lowercase letters

• Using numbers and symbols

• Using an uppercase letter for the first letter

How do you create a new instance of a class in Node.js?

• By using the 'new' keyword

• By using the 'create' function

• By using the 'instance' keyword

• By using the 'build' function

What is the output of the 'greet' method in the Person class?

• A random number

• A greeting with the person's name and age

• A farewell message

• An error message