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

Make sure you're retrieving values from the array inside the while loop to compute the sum

Now that we have the while loop set up, it's time to compute the sum! Using the value of counter as an index value, retrieve each value from the array and add it to the value of sum.

For example: sum = sum + newValue. Or you could use the compound addition operator sum += newValue where newValue is the value retrieved from the array.

the work I've done was - while counter < numbers.count { print (counter[numbers]) counter += 1 i am very much stuck, thank you for you help in advace

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

// Enter your code below

while counter < 1 {
    print(counter)
    counter += 1
}

while counter < sum.count {
    print (counter[numbers])
    counter += 1
}

2 Answers

You can complete this challenge by using a single while loop rather than multiple ones.

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

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

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

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