What is the correct way to represent a constant in JavaScript?

Which of the following is not a valid JavaScript identifier?

A). first_name

B). $2users

C). break

D). myVar

Which naming convention uses hyphens to separate words?

A). CamelCase

B). snake_case

C). Kebab-Case

D). PascalCase

Which of the following is not a valid JavaScript identifier?

A). my_var

B). $amount

C). const

D). variable1

What is the significance of using meaningful names for identifiers?

A). Improve code efficiency

B). Make the code shorter

C). Enhance code readability

D). Ensure code security

Which of the following is not a valid JavaScript variable name?

A). $varName

B). first_name

C).

D). _variable

What is the correct spelling for the naming convention starting with uppercase for each word?

A). Pascal_Case

B). pascalcase

C). pascalCase

D). PascalCase

What is the best practice for naming JavaScript identifiers?

A). Use short and cryptic names

B). Use meaningful and descriptive names

C). Use reserved keywords as identifiers

D). Use Unicode characters in identifiers

Which of the following file extensions is commonly used for JavaScript files?

A). JavaScriptIdentifiers.docx

B). JavaScriptIdentifiers.java

C). JavaScriptIdentifiers.js

D). JavaScriptIdentifiers.html

What is the naming convention that starts with a lowercase letter and each subsequent word starts with a capital letter?

A). camelCase

B). Snake_Case

C). kebab-case

D). PascalCase

Which of the following is a valid JavaScript identifier?

A). user-name

B). 2users

C). _user

D). user name