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

Morris Wilson
Morris Wilson
681 Points
Posted by Morris Wilson
Morris Wilson
681 Points

Adding values in an Array

Hello, I don't understand how to add the values in the array. I know that the code arrayName.reduce(0. +) will add the values in an array but I'm sure that's not what this question is asking. Maybe I don't understand the question. Can anyone help me? Thanks

loops.swift 
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

Elliot Rutherfoord
Elliot Rutherfoord
7,684 Points

Hi Morris, this stuff was challenging for me at first also. This is how to sequentially add values inside an array:

let numbers = [10, 20, 30] var sum = 0 var counter = 0

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

// Besides the obvious while statement and counter += 1, this basically says "Add the value at position counter (0) inside numbers to the sum variable.

Hope this helps :)

Morris Wilson
Morris Wilson
681 Points
Morris Wilson
Morris Wilson
681 Points

Thanks Elliot, that works. I'm still getting used to type of thinking required to understand and learn coding. Truly appreciate your help.