arrays,swift,enums,max,member , Access rawValue of enum in array in Swift


Access rawValue of enum in array in Swift

Question:

Tag: arrays,swift,enums,max,member

I'm trying to use maxElement to work with enums in an array, accessed by .rawValue as shown in the example below:

var planets: [Planets] = [.Mars, .Earth, .Jupiter]
maxElement(planets.rawValue)

I could just use other methods to get the max rawValue but it would be so nice and easy if it could be used this way, but is it even possible?


Answer:

There is no direct way to that.

let maxPlanet = Planets(rawValue: maxElement(planets.map({$0.rawValue})))!

You have to:

  1. make an array of rawValues
  2. get maxElement from that.
  3. convert back to enum using Planets(rawValue:)

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