Hi, Im stuck on changing gear method. Console give me gear: 0 - no mather what input i give.

The whole struct look like this:

struct Car {
    let model: String
    let seats: Int
    private(set) var gear = 1

    mutating func gearChange (currentgear: Int) {
        if currentgear <= 10 {
            gear -= 1
        } else if currentgear > 1 {
            gear += 1
        }
    }
}

var myCar = Car(model: "Saab 9-3", seats: 4)
myCar.gearChange(currentgear: 9)

print(myCar)

Well, you are setting gear to 1 initially

private(set) var gear = 1

And your function looks like this

mutating func gearChange (currentgear: Int) {
        if currentgear <= 10 {
            gear -= 1
        } else if currentgear > 1 {
            gear += 1
        }
}

So, anytime you call the function with a currentGear of 10 or less, it is going to subtract 1 from gear. So gear will be equal to 0 at that point.

So when you call the function with a currentGear of 9

myCar.gearChange(currentgear: 9)

it enters your if closure because 9 is less than or equal to 10. So it subtracts 1 from gear which makes gear equal to 0.

If you call the function with a currentGear value greater than 10, it will skip your if closure, and enter your else if closure. So it will add 1 to gear each time. So you will end up with gear being equal to 2.