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

whats wrong?

whats wrong with my code?

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

// Enter your code below
while counter > 6 {
print(sum)
}

2 Answers

John Lack-Wilson
John Lack-Wilson
8,169 Points

I've just tried your code in the challenge and the error it gives is:

"Make sure you increment the counter variable inside the loop! If you don't, the code loops infinitely and the challenge times out!"

So you might want to increment the counter variable before the ending closing brace of the while loop.

It's always worth reading error messages when programming as they generally give a good indication of what is going wrong.

Gavin Hobbs
Gavin Hobbs
5,205 Points

Hey Ronald James this is what your code should look like...

let numbers = [2,8,1,16,4,3,9]
var sum = 0
var counter = 0

// Enter your code below
while counter < 7 {
   // Add the next number in the array to the sum then assign _that value_ to the 'sum' variable
  // It's kind of hard to understand but if you look up '+=' you should be able to figure it out
    sum += numbers[counter]

   // Add 1 to the 'counter' variable so it isn't an infinite loop
    counter += 1
}

Hope this helps!

G'day

  • Gavin