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 file extensions is commonly used for JavaScript files?
A). JavaScriptIdentifiers.docx
B). JavaScriptIdentifiers.java
C). JavaScriptIdentifiers.js
D). JavaScriptIdentifiers.html
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 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 function name?
A). function 1
B). function_name
C). function()
D). $function
Which of the following is not a valid JavaScript variable name?
A). $varName
B). first_name
C).
D). _variable
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 variable name?
A). $varName
B). first_name
C).
D). _variable
Which naming convention separates words with underscores?
A). camelCase
B). PascalCase
C). snake_case
D). kebab-case
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 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