What is the best practice for naming JavaScript identifiers?

Which of the following is a valid JavaScript function name?

A). function 1

B). function_name

C). function()

D). $function

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

A). CONSTANT_VALUE

B). constantValue

C). const_value

D). ConstValue

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 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 file extensions is commonly used for JavaScript files?

A). JavaScriptIdentifiers.docx

B). JavaScriptIdentifiers.java

C). JavaScriptIdentifiers.js

D). JavaScriptIdentifiers.html

Which of the following is not a valid JavaScript variable name?

A). $varName

B). first_name

C).

D). _variable

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

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

A). UPPERCASE

B). lowercase

C). camelCase

D). kebab-case