Which of the following is not a valid JavaScript identifier?
A). my_var
B). $amount
C). const
D). variable1
Which of the following is a valid JavaScript function name?
A). function 1
B). function_name
C). function()
D). $function
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
Which of the following is a valid JavaScript variable name?
A). $varName
B). first_name
C).
D). _variable
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
Which of the following is a valid JavaScript identifier?
A). user-name
B). 2users
C). _user
D). user name
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). first_name
B). $2users
C). break
D). myVar
Which of the following is not a valid JavaScript variable name?
A). $varName
B). first_name
C).
D). _variable