One Quickie

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Swift if case let (Swift->General)

Because I can never remember the syntax: Given

enum FilterOptionValue {
    case oneSided(value: Double)
    case twoSided(low: Float, high: Double)
}

You can unpack it piecewise on demand with

        if case let .twoSided(low, high) = thingieOption.value {
            minThingie = Int(low)
            upperThingie = Int(high)
        }