Q
Which of the following is a correct variable declaration in JavaScript?

Answer & Solution

Answer: Option C
Solution:
Both 'var Variable = 1;' and 'var variable = 1;' are correct but they refer to different variables due to case sensitivity.
Related Questions on Average

Can JavaScript variables 'example' and 'Example' be declared in the same scope?

A). Yes

B). No

C). Only in strict mode

D). Only in non-strict mode

How will JavaScript handle 'VarName' and 'varName' in the same scope?

A). Treat as the same

B). Treat as different

C). Throw an error

D). Ignore one

What happens if you try to declare two variables with the same name but different cases?

A). Error

B). Both are declared

C). Only one is declared

D). None of the above

What is the best practice for naming variables to avoid issues with case sensitivity?

A). Use only lowercase

B). Use only UPPERCASE

C). Use consistent case conventions

D). Use special characters

How does JavaScript interpret the following? let varName = 5; let VarName = 10; console.log(varName, VarName);

A). 5 5

B). 10 10

C). 5 10

D). 10 5

What will be the output of the following code? let name = 'Alice'; let Name = 'Bob'; console.log(name, Name);

A). Alice Bob

B). Bob Alice

C). Alice Alice

D). Bob Bob

How should constants be declared to avoid confusion with variable names?

A). UPPERCASE

B). lowercase

C). camelCase

D). snake_case

Can a function and a variable have the same name with different cases in JavaScript?

A). Yes

B). No

C). Only in strict mode

D). Only in non-strict mode

What is the recommended naming convention for JavaScript functions?

A). camelCase

B). UPPERCASE

C). snake_case

D). PascalCase

Which of the following statements is true about case sensitivity in JavaScript?

A). Variable names are case-insensitive

B). Function names are case-insensitive

C). Identifiers are case-sensitive

D). All of the above