Which of the following is a valid JavaScript variable name?
A). $varName
B). first_name
C).
D). _variable
Which type of case conversion is commonly used for naming variables in JavaScript?
A). UPPERCASE
B). lowercase
C). camelCase
D). kebab-case
Which of the following file extensions is commonly used for JavaScript files?
A). JavaScriptIdentifiers.docx
B). JavaScriptIdentifiers.java
C). JavaScriptIdentifiers.js
D). JavaScriptIdentifiers.html
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 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 uses hyphens to separate words?
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 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
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 JavaScript identifier?
A). my_var
B). $amount
C). const
D). variable1