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

Posted by Amber Jackson
Amber Jackson
2,549 Points

What would terminate a LET variable?

I can't seem to figure out what would terminate a let constant. numbers += 1 wouldn't be allowed, right? Since it's adjusting numbers.

loops.swift 
let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0
while numbers <= 7 {


// Enter your code below

1 Answer

Jeff McDivitt
Jeff McDivitt
23,970 Points
Jeff McDivitt
Jeff McDivitt
23,970 Points

Hi Amber -

The task does not ask you to change the numbers array. You have another empty array named Sum that you are adding the numbers to and storing them in.

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

}