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

Yu Wu
Yu Wu
338 Points

code does not go through, saying expected expression after operator... any thoughts?

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

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

while_loops.swift
let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
var index = 0 
while index  < numbers.count {
      println(numbers[index])
      index ++
}

3 Answers

The reason your code is not passing is because you have a space between the index and the ++. If you remove that space, it'll work just fine.

Steve.

Yu Wu
Yu Wu
338 Points

yes you are right!! Just removed the space and it worked fine. Thank you so much for your help!

Hi there,

You're very close - I just tried this challenge and this code got through:

let numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
var index: Int = 0
while (index < numbers.count){
  println(numbers[index])
  index++
}
Andrew Claytor
Andrew Claytor
6,637 Points

while index < numbers.count { println(numbers[index]) index = index + 1 } you can always do it like this or the short hand has no space while index < numbers.count { println(numbers[index]) index++ }

Yu Wu
Yu Wu
338 Points

the devil is in the details indeed... Thank you so much for your help!