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

Posted by Brandon Mikeska
Brandon Mikeska
4,010 Points

The error doesn't make sense. It's saying "You need to use 'println()', and I am typing 'println(numbers[index]) ????

I think it may be another error but I don't know since the error isn't useful

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

var index = 0
while numbers.count < 10 {
  println(numbers[index])
  index++
}

1 Answer

Gareth Borcherds
Gareth Borcherds
9,372 Points

Yeah, the error isn't useful. Essentially there are no compile errors with your code (although it's an infinite loop) and so the only thing the testing thing can tell you is that the output is not correct from your code.

Here's what it is looking for

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

Notice that it's while index < numbers.count and not numbers.count < 10.

Brandon Mikeska
Brandon Mikeska
4,010 Points

Haha that makes complete sense. I wasn't even look at the while statement. What a shame!