Which of the following is not a valid JavaScript identifier?

Which type of case conversion is commonly used for naming variables in JavaScript?

A). UPPERCASE

B). lowercase

C). camelCase

D). kebab-case

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

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 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

What does the term 'case-sensitive' mean for identifiers in JavaScript?

A). Identifiers can have uppercase and lowercase letters interchangeably

B). Identifiers must have consistent capitalization throughout the code

C). Identifiers are not sensitive to case differences

D). Identifiers are sensitive to differences in uppercase and lowercase letters

Which of the following is not a valid identifier naming convention?

A). camelCase

B). snake_case

C). dash-case

D). PascalCase

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 role of reserved keywords in JavaScript identifiers?

A). Can be used as identifiers without issues

B). Cannot be used as identifiers

C). Enhance code performance

D). Ensure code security

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

A). CONSTANT_VALUE

B). constantValue

C). const_value

D). ConstValue