Splat Operator in Case Statement

Jan 14th, 2015

Today I learned that this is valid ruby and is yet another example of how awesome the splat operator, *, really is.

  EVENS = [0,2,4,6,8]
  ODDS  = [1,3,5,7,9]
 
  result =
    case 3
    when *EVENS
      :even
    when *ODDS
      :odds
    else
      :unkown
    end
 
  result # => :odds

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