How to convert double to int in swift

Question

So I\'m trying to figure out how I can get my program to lose the .0 after an integer when I don\'t need the any decimal places.

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Answer 1

It is better to verify a size of Double value before you convert it otherwise it could crash.

extension Double {
    func toInt() -> Int? {
        if self >= Double(Int.min) && self < Double(Int.max) {
            return Int(self)
        } else {
            return nil
        }
    }
}

The crash is easy to demonstrate, just use Int(Double.greatestFiniteMagnitude).