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iOS Swift Basics (retired) Control Flow While and Do-While Loop

Posted by Nyle Abedin
Nyle Abedin
358 Points

what does swift_lint.swift:8:7: error: use of unresolved identifier mean?

in this challenge task its telling me this when i used index. What does it want me to do?

while_loops.swift 
let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
while index < numbers.count {println(numbers[index]);index++}

1 Answer

Chase Marchione
Chase Marchione
155,055 Points
Chase Marchione
Chase Marchione
155,055 Points

Hi Nyle,

You're close: you need to initialize your counter variable.

let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

var index = 0
while index < numbers.count
{
  println(numbers[index]);
  index++
}

Hope this helps!

Nyle Abedin
Nyle Abedin
358 Points

It does help. Thanks so much!