Answer & Solution
Answer: Option C
Solution:
'break' is a reserved keyword and cannot be used as an identifier.
Q
Which of the following is not a valid JavaScript identifier?
Related Questions on Average
Which of the following is not a valid JavaScript identifier?
A). my_var
B). $amount
C). const
D). variable1
What is the correct way to represent the identifier 'improveCode' using camelCase?
A). improveCode
B). Improve-Code
C). IMPROVECODE
D). improve_code
Which type of case conversion is commonly used for naming variables in JavaScript?
A). UPPERCASE
B). lowercase
C). camelCase
D). kebab-case
Which naming convention separates words with underscores?
A). camelCase
B). PascalCase
C). snake_case
D). kebab-case
Which of the following is not a valid JavaScript variable name?
A). $varName
B). first_name
C).
D). _variable
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 spelling for the naming convention starting with uppercase for each word?
A). Pascal_Case
B). pascalcase
C). pascalCase
D). PascalCase
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 identifier naming convention?
A). camelCase
B). snake_case
C). dash-case
D). PascalCase
What is the correct way to represent a constant in JavaScript?
A). CONSTANT_VALUE
B). constantValue
C). const_value
D). ConstValue