If if statement returns true never execute that function

Question

I've a function with if statement inside it, I want to check everytime person clicks, whenever the if statement returns true, I want that function to be removed or never again called, is it possible to achieve in swift?

    func checkLevelUp(){
        if CookieViewController.moneyLevel >= 3 && CookieViewController.bonusLevel >= 3 && CookieViewController.spinLevel >= 3 {
            print("Level up !!!!!!!") // if this is printed, I never want checkLevelUp function to exists
        }
    }

Answer 1

You need to store this particular state outside the scope of this function.

var didLevelUp = false

func checkLevelUp() {
    guard !didLevelUp else {
        return // return out of the function if `didLevelUp` is not false
    }
    if CookieViewController.moneyLevel >= 3 &&
        CookieViewController.bonusLevel >= 3 &&
        CookieViewController.spinLevel >= 3 {
        print("Level up !!!!!!!")
        didLevelUp = true
    }
}

How you store it outside the scope of the function is up to you but this is the solution you're looking for.