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Yan Sim
562 PointsHow do you use a loop to sum up all the numbers in an array? This is in Swift 3.0.
I'm getting an error here that says that the code could not be compiled but there is no preview button above the code challenge so I'm not able to see what's wrong with it.
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]
var sum += newValue
counter += 1
}
1 Answer
andren
28,558 PointsThe loop and logic in your code is fine, the problem is this line:
var sum += newValue
var is used to declare new variables, you don't use it when referencing and changing existing variables. So just remove it like this:
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 += 1
}
And you will be able to complete the challenge.
Yan Sim
562 PointsThank you Arden!
Michael Liang
1,209 PointsMichael Liang
1,209 PointsMeet the same problems soem days ago as well.I think there is a bug occured.The compile doesn't work.You can just paste these code into the playground.I can't help u,as I don't know what the question is.