What does typeof args return when calling getAge(21)?

When you call the function getAge(21) and use the typeof operator on the argument args, it's important to understand what args represents in this context. Assuming getAge is defined as a function that takes a single argument, in this case, the value 21, the argument is treated as an individual value and not an array or object.

If args is simply a single numeric value like 21, using typeof on it will correctly identify the type as "number". It's crucial to recognize that if the function is designed to accept one parameter, then calling it with a number directly means that parameter is not an object or an array.

This means that the expected type of "args", when simply passed a number, would indeed be "number". Other options, such as "array", "object", or "NaN" do not accurately reflect the type of a single numeric value being passed to the function. Therefore, the expected outcome from the call typeof args when args is 21 should indicate it is of type "number".