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6,443 PointsAny idea what's wrong with this?
Hi all. This is the task: "Write a function named duplicate with a single generic type parameter T. The function takes two arguments, item of type T, and numberOfTimes of type Int, and returns an array of type T. The function simply creates an array containing the element duplicated by the number of times specified. For example, calling duplicate(item: 1, numberOfTimes: 4) returns [1, 1, 1, 1]"
Any idea what's wrong with my code? The declaration of this function is fine in Xcode (= no errors) but when I try to actually use it, that's when I get an error. Thanks
func duplicate<T>(item: T, numberOfTimes: Int) -> [T]{
var array: [T] = []
for i in 0..<numberOfTimes {
array[i] = item
}
return array
}
1 Answer
Ian Billings
Courses Plus Student 7,494 PointsHi Jiri,
The problem is in your for loop you are attempting to access an array index that doesnβt exist. So it errors instead of adding the item to the array. You need to change it to: array.append(item)
Ian
lvwdhydynw
6,443 Pointslvwdhydynw
6,443 PointsThank you sir! :)