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iOS Intermediate Swift 2 Extensions and Protocols Protocol Extensions

Kittipol Munkatitum
Kittipol Munkatitum
13,074 Points

stuck in this challenge

Hi, I can't pass this challenge. Could you help me pass this challenge this is my code

extension Math
{
    func square(value: Double) -> Double {
        return square(value)
    }

}

thanks

protocols.swift
protocol Math {
  func square(value: Double) -> Double
}

// Enter your code below

1 Answer

Jason Anders
MOD
Jason Anders
Treehouse Moderator 145,627 Points

Hey there,

First, I add the markdown to you post so your code is more readable in the Forum. :)

Next, you're on the right track with your answer, but you are calling the function inside of itself. What the challenge wants is the implementation, not the method call.

Below is the corrected code for your reference. I hope it makes sense once you see the solution. :)

protocol Math {
  func square(value: Double) -> Double
}

// Enter your code below
extension Math{
  func square(value: Double) -> Double{
    return value * value //here, now the function has some "function"
  }
}

Keep Coding! :dizzy: