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

Em Har
Em Har
9,775 Points

Swift Collections and Control Flow Challenge Task 2 of 2

help! Super confused for the second step.

In this task, we have an array of numbers and we want to compute the sum of its values.

We have a variable ,sum, that will store the value of the sum of numbers from the array.

We also have a variable ,counter, which we will use to track the number of iterations of the while loop.

Step 1: Create a while loop. The while loop should continue as long as the value of counter is less than the number of items in the array. (Hint: You can get that number by using the count property)

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

// Enter your code below
while counter < 6 {
  counter += 1




}

1 Answer

When you need to get the count of the items inside of an array use 'count', it shouldn't have passed you with 6 especially since there are 7 items. For the next part you can access a given number in the array with numbers[number here].

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

// Enter your code below
while counter < numbers.count {
  sum += numbers[counter]
  counter += 1
}