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iOS Swift Collections and Control Flow Control Flow With Loops Working With Loops

Tyler Dotson
PLUS
Tyler Dotson
Courses Plus Student 1,740 Points

Help!! with getting the index numbers to get all iterations.

I don't know how to get all the iteration in the array.

loops.swift
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

// Enter your code below
while counter < numbers.count {
      counter += 1

      sum = sum + numbers[0]

}

1 Answer

Dhanish Gajjar
Dhanish Gajjar
20,185 Points

To access any element inside the array, you need to use the index value, something like numbers[0] and it will access the first value.

In this case, while the counter is less the number of elements in the array, you need to add the value of each and every element inside the array, to the sum.

You could also declare another variable, for example var index = 0 but then you'd have to increment that by 1 after the counter. Since you already have the counter, you can use the same for accessing the index of the array, every time it loops and updates by 1.

Hope this helps!

let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0


while counter < numbers.count {
    sum += numbers[counter]
    counter += 1
}
Tyler Dotson
Tyler Dotson
Courses Plus Student 1,740 Points

OMG thank you so much that was bothering me so much i cant believe i didnt think about that but thank you