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

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

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 naming convention separates words with underscores?

A). camelCase

B). PascalCase

C). snake_case

D). kebab-case

Which of the following is a valid JavaScript variable name?

A). $varName

B). first_name

C).

D). _variable

Which of the following is a valid JavaScript function name?

A). function 1

B). function_name

C). function()

D). $function

What is the purpose of following naming conventions for identifiers?

A). Improve code performance

B). Enhance code readability and maintainability

C). Ensure cross-browser compatibility

D). Reduce code size

Which of the following is not a valid JavaScript identifier?

A). first_name

B). $2users

C). break

D). myVar

What is the correct way to represent the identifier 'improveCode' using camelCase?

A). improveCode

B). Improve-Code

C). IMPROVECODE

D). improve_code

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

A). CONSTANT_VALUE

B). constantValue

C). const_value

D). ConstValue