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Start your free trial###### Laurie Cai

5,391 Points# Code Challenge: Function with argument labels not executing. What am I missing?

In this task we're going to write a simple function that takes two numbers and returns the remainder of dividing one number by the other.

Step 1: Declare a function named getRemainder that takes two parameters, aand b, both of type Int, and returns the value, also of type Int, obtained by carrying out the operation a modulo b. In case you've forgotten, the modulo operator is also called the remainder operator.

Step 2: The local names of the parameters are convenient but they make it hard to figure out the meaning of the function when we call it. Add two external names - value, for the first parameter and divisor for the second.

```
func getRemainder(a value: Int, b divisor: Int) -> Int {
let aModuloB = a % b
return aModuloB
}
```

###### Jeremy Conley

4,791 PointsActually now that I'm reading this it may be this solution, I haven't taken the course so I was just assuming,

```
func getRemainder(value a: Int, divisor b: Int) -> Int {
let aModuloB = a % b
return aModuloB
}
```

Either way you are just mixing up your local and external params. Here 'value' and 'divisor' are just external names to help you understand what is going into the function, you don't actually use them in the method.

## 2 Answers

###### Jeff McDivitt

23,970 PointsThis is the cleanest way to write this function

```
func getRemainder(value a: Int, divisor b: Int) -> Int {
return a % b
}
let result = getRemainder(value: 10, divisor: 3)
```

###### Elliot Rutherfoord

7,684 PointsHey man looks like you already got it though there is a cleaner way to write this :)

func getRemainder(a value: Int, b divisor: Int) -> Int { return value % divisor }

## Jeremy Conley

4,791 Points## Jeremy Conley

4,791 PointsYou almost got it,