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Michael Zarucki
803 PointsHow to retrieve value of sum through while loop?
How do I retrieve value of sum through while loop?
isn't the answer : sum == numbers.count ?
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
}
1 Answer
David Papandrew
8,386 PointsHi Michael,
numbers.count will give you the number of items in the array. It will not provide you with a sum of the array values unfortunately.
Instead, using the while loop, each time the loop runs, you will grab an item from the array and add it to the sum variable. Also, each time you run the while loop, you will increment the counter variable. Since counter variable starts at 0 and increments through 1, 2, 3, etc., you will use the counter value as your index value when "grabbing" an array value to add to the sum.
Here is the code:
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
}
Hope that helps.
Michael Zarucki
803 PointsMichael Zarucki
803 PointsDavid,
It is still a little confusing, but seeing the answer makes it obvious. I'll probably go back to the loop lessons and review the information.
Thank you,
Michael