# Functions: Return

I don’t get the last one.

Can someone explain it to me?

Hi, @rattlecage26 ,

In that final statement, you multiplied the `getSubTotal` function, itself, by a number instead of multiplying the result of calling the function by a number.

``````console.log(getSubTotal * orderCount)
``````

The result is `NaN`, which is not a number.

EDIT (December 5, 2016): Note that the instructions ask the user to call the `getSubTotal` function, but do not ask to have the result multiplied by anything.

It is best to post questions regarding Codecademy exercises within the discussion area specifically devoted to the series that contains that exercise, and to post a link to the exercise. That enables users who hope to offer help to find the exercise.

2 Likes

A post was split to a new topic: Hope some one can help me for below questions

I don’t follow you in this sentence “you multiplied the getSubTotal function, itself, by a number instead of multiplying the result of calling the function by a number.” Is there another way you could explain it?

Where I’m having trouble is understanding is:

1. Why do you pass in orderCount instead of itemCount?
2. Come to think of it, why did we create a var for orderCount and not for itemCount? itemCount just suddenly appears as an argument for getSubTotal? (Maybe this was in the previous Return lesson, but it’s been a few weeks.)

I know from the hint that the right answer is to pass orderCount in getSubTotal, but I want to understand why before I move on.

1 Like

Hi @stellapygmy,

The code contains a function named `getSubTotal`. Whenever that function is called, it should be passed a numerical value, as an argument, and within the function, the value of that argument is represented by the name `itemCount`. As a function parameter, `itemCount` is a local variable that is only recognized within the `getSubTotal` function.

In this statement the original poster attempted to multiply the function name, `getSubTotal`, by the value of the variable `orderCount`

``````console.log(getSubTotal * orderCount)
``````

What is really needed is for the result of calling the function to be multiplied by `orderCount`. In the function call, `orderCount` should be passed as an argument, as follows …

``````console.log(getSubTotal(orderCount));
``````

Then, as the function executes, the value of `orderCount` will be represented by `itemCount` within the function. The returned result will get displayed in the console.

2 Likes

Thanks, @appylpye! The next module (About global vs. functional variables) also helped me understand what was going on, too. Thank you!

Awesome, enjoy the rest of the course. 1 Like