frakingFrank

func occurrencesOfCharacters(in text: String) -> [Character: Int] {
    var dict: [Character: Int] = [:]
    for key in text {
        if dict[key] == nil {
        dict[key] = 1
        }else{
            dict[key]! += 1
        }
        

frakingFrank

var dict = ["Eins" : 1, "Zwei": 2]


func isInvertible(_ dictionary: [String: Int]) -> Bool {
    var isItTrue = true
    var array : [Int] = []
    for numbers in dict.values {
        if array.contains(numbers) == false {

frakingFrank

func divideIfWhole(_ value: Int, by divisor: Int) -> Int? {
    var answer: Int? = 0
    let divisible = value % divisor
    switch divisible {
    case 0:
         answer = value / divisor
    default:
         answer = nil
    }
    return answer

frakingFrank

func isNumberDivisible(_ number: Int, by divisor: Int) -> Bool {
    if number % divisor == 0 {
        return true
    } else {
        return false
    }
}