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iOS Swift 2.0 Collections and Control Flow Control Flow With Conditional Statements Working with Logical Operators

Posted by Rzgar Espo
Rzgar Espo
872 Points

Hi, online editor doesn't work properly. it keep telling use of unresolved identifier 'results'

here is my answer: var results: [Int] = []

for n in 1...100 { // Enter your code below if n % 2 != 0 && n % 7 == 0 {

    results += [n]
    print(results)
}

// End code

} and this is error i get: swift_lint.swift:10:11: error: use of unresolved identifier 'results' print(results) in my xcode everything works just fine. i don't know why the online code editor keep generating same error despite changing the var names or removing the whole code. so i'm can't move on without solving this issue

logicalOperators.swift 
var results: [Int] = []

for n in 1...100 {
    // Enter your code below
    if n % 2 != 0 && n % 7 == 0 {

    results += [n]
    print(results)
    }

    // End code 
}

2 Answers

jcorum
jcorum
71,830 Points

Rzgar, try this:

var results: [Int] = []

for n in 1...100 { // Enter your code below 
  if n % 2 != 0 && n % 7 == 0 {

    results.append(n)
    print(results)
  }
}

You are trying to add [n] to the array, but you need add only n, and you need to use the append() method. += worked in Swift 1.0, but it no longer works in Swift 2.0.

Rzgar Espo
Rzgar Espo
872 Points
Rzgar Espo
Rzgar Espo
872 Points

Thank you @jcorum .I managed to figure it out and edited the code exactly as you are suggesting here. Thank you again for taking time :)