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Chris Miller
2,186 PointsNot sure how to store each value of the array and add it. I'm getting wonky numbers.
// Challenge 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 let newValue = counter sum = sum + newValue } sum
Any help would be appreciated. Thanks!
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
let newValue = counter
sum = sum + newValue
}
3 Answers
John Marley
8,740 PointsHi there,
Took me a while to work this out revisiting it but I'll break down the mistakes I made.
Initially did this, which failed...
// This resolution didn't take into account all values in array.
// I had to iterate within numbers.count - 1 otherwise I'd get an error
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
// Enter your code below
while counter < numbers.count - 1 {
counter += 1
sum += numbers[counter]
}
The best way to access the values in the numbers array is to use subscripting syntax '[]' The following passed...
// Bearing in mind, arrays.count begins at 0
// sum = sum + numbers[whatever counter equals in this iteration]
// counter += 1 has to follow sum += numbers[counter]
// otherwise it skips the first value
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
}
John Marley
8,740 PointsThe resolution to this question below is put more succinctly.
Chris Miller
2,186 PointsThanks for the detailed feedback.