Init with bindings swiftui

struct AmountView : View {
    @Binding var amount: Double

    private var includeDecimal = false

    init(amount: Binding<Double>) {

        // self.$amount = amount // beta 3
        self._amount = amount // beta 4

        self.includeDecimal = round(self.amount)-self.amount > 0
    }
}

Source: stackoverflow.com

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