This just doesn't work. I don't know why.

Question

This doesn't work. This is coming after 2 hours of trying at 3 in the morning. Please HELP!!

functions.swift

// Enter your code below
import Foundation
extension String{

    func transform (_ function: (String) -> String) -> String{
        return function(self)
    }

    func toCharacter() -> [Character]{
        var working = self.components(separatedBy: "")
        var output: [Character] = []

        for i in 0...working.count{
            output.append(Character(working[i]))
        }

        return output
    }
}

extension Character {
    var isVowel: Bool {
        let vowels: [Character] = ["a", "e", "i", "o", "u"]
        return vowels.contains(self)
    }
}

func removeVowels(from given: String) -> String{

    var working = given.toCharacter()

    for i in 0...working.count{
        if working[i].isVowel{
            working.remove(at: i)
        }
    }

    return String (working)

}

Answer 1 · 2019-08-17T18:33:14Z

August 17, 2019 6:33pm

Hello,

Sorry for the delayed answer.

So, the challenges are asking to remove the vowels from a string literal, in this case we want to have a list of what we will consider to be vowels. So we can make an array of "Characters" which conform the String literal. We also may use a loop to go over this array and see if our word contains any of the characters in this array, if it does, then we remove it or in our case, we simply don't add it to our new word.

extension String {

  func transform(_ function: (String) -> String ) -> String {
    return function(self)
  }

}

func removeVowels(from: String) -> String {
   // Our new word to be returned without vowels
    var newWord: String = ""

   // List of vowels
    let vowels: [Character] = ["a","e","i","o","u"]

   // Looping and checking if the word contains any vowels
    for character in from.characters {

      // If the list vowels does NOT contain the character, then we append to the new word
        if !vowels.contains(character) {
            newWord.append(character)
        }
    }

   // Return newly created word
    return newWord
}

// Then we use the new methods we just created
let result = "Hello, World!".transform(removeVowels)

I hope this helps you, please let me know.

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This just doesn't work. I don't know why.

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1 Answer

Jhoan Arango

Jhoan Arango

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Jhoan Arango

Jhoan Arango

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