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iOS Generics in Swift Generic Functions, Parameters and Constraints Generic Functions

Ingo Ngoyama
Ingo Ngoyama
4,882 Points

My code works but it wont let me pass.

I have put in all the correct arguments and labels and my output is matches so why is my code not working

generics.swift
func duplicate<T>( _ item: inout T, _ numberOfTimes: inout Int) -> [ T ]
{
    var anArray = [item]
    var counter = 0
        repeat{
        anArray.append(item)
        counter += 1
    } while counter < numberOfTimes
    return anArray
}

var a = 1
var b = 3

var myArray = duplicate(&a, numberOfTimes: &b)

2 Answers

Jeff McDivitt
Jeff McDivitt
23,970 Points

Although there are multiple ways to complete this. Here is the way that I did. There are several things that you are including that do not need to be included

func duplicate<T>(item:T, numberOfTimes:Int) -> Array<T> {
    var newArray: [T] = []
    for _ in 0..<numberOfTimes {
        newArray.append(item)
    }
    return newArray
}
duplicate(item: 1, numberOfTimes: 4)
Christoph Eck
PLUS
Christoph Eck
Courses Plus Student 7,021 Points

Short and working

func duplicate<T>(item: T, numberOfTimes: Int) -> [T] {
    var ary = [T](repeating: item, count: numberOfTimes)
    return ary
}