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iOS Swift Basics Swift Operators Working With Operators: Part 2

Kelsey Curran
Kelsey Curran
381 Points
Posted by Kelsey Curran
Kelsey Curran
381 Points

NOT Operators

Not sure what I'm doing wrong... is there a simpler way to get what they're looking for here?

It prints what they want, but I think I'm adding an unnecessary step.

operators.swift 
// Enter your code below

var initialScore = 8

initialScore += 1

let newScore = initialScore == 10

let isWinner = !newScore

1 Answer

andren
andren
28,558 Points
andren
andren
28,558 Points

You are indeed adding an extra step. You can reverse the initialScore == 10 operation without creating a separate variable by wrapping it in parenthesis like this:

var initialScore = 8
initialScore += 1
let isWinner = !(initialScore == 10)

By wrapping the comparison in parenthesis you tell Swift to complete the comparison first and then to invert the result with the ! operator.

That is the solution the challenge hints at. Though honestly it's not that common to see code like that in the real world in my experience. It's more common to use the not equal to operator like this:

var initialScore = 8
initialScore += 1
let isWinner = initialScore != 10

That does the same thing but is a bit simpler to read. Both of those solutions will work for this challenge.