How to access a Swift enum associated value outside of a switch statement

Question

Consider:

enum Line {
    case    Horizontal(CGFloat)
    case    Vertical(CGFloat)
}

let leftEdge             =  Line.Horizontal(0.0)
let leftMaskRightEdge             


        

Answer 1

You can use a guard statement to access the associated value, like this.

enum Line {
    case    Horizontal(Float)
    case    Vertical(Float)
}

let leftEdge             =  Line.Horizontal(0.0)
let leftMaskRightEdge    =  Line.Horizontal(0.05)

guard case .Horizontal(let leftEdgeValue) = leftEdge else { fatalError() }

print(leftEdgeValue)