What have i done wrong?

Question

Code Challenge Request:
(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.)
What I've done:
func getRemainder(a value: Int,b divisor: Int) -> Int {
  return value
}
Please tell me what I've done wrong : )

Jennifer Nordell · Accepted Answer

Hi there @Benjamin Masel (https://teamtreehouse.com/benjibuilder)!  You have a couple of problems here.  First, you've reversed the order of the names of the internal and external names for the function.  But also, you never return the remainder.  You're just returning the value that was sent in.  We want to return the result of the value modulus divisor.  We do this with the remainder/modulus operator %.  Take a look:
```swift
// Enter your code below
 func getRemainder(value a: Int,divisor b: Int) -> Int { 
  return a % b
 }
```
When we set up our function we write the external name first then the internal name.  This function will return the remainder of a divided by b.  So if we were to now send in 12 as the value and 7 as the divisor, our code would return 5.  Twelve divided by seven results in a one with a remainder of 5.  Hope this helps!  :sparkles:

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Ben Masel

Ben Masel

What have i done wrong?

1 Answer

Jennifer Nordell

Jennifer Nordell