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iOS Swift 2.0 Collections and Control Flow Control Flow With Loops Working with Loops

What steps do I take to create the newValue?

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.

I'm not sure what to do here.

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

// Enter your code below

while sum < numbers.count {
    (numbers[counter])
    sum++
}
let newValue = sum
var sum = [Int](count: counter + 1, sum: 0)

2 Answers

Jhoan Arango
Jhoan Arango
14,575 Points

Hello :

This is what you are looking for...

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 += newValue
counter++
}

The newValue is a variable that you create to hold the values from the array, and then pass them on to the sum as the loop works.

Oscar Gonzalez Castañeda
Oscar Gonzalez Castañeda
808 Points

while counter < numbers.count { var newValue = numbers[counter] sum += newValue counter += 1 }

this helped me