-- [[
   Equivalent code for

   if color == "red" then
      print("Color is red")
   elseif color == "blue" then
      print("Color is blue")
   elseif color == "green" then
      print("Color is green")
   end
]]

-- Assemble switch table

local switch = {
      ["red"] = function() print("Color is red") end,
      ["blue"] = function() print("Color is blue") end,
      ["green"] = function() print("Color is green") end,
}

-- Get the function stored at switch[color], then call it

what_to_do = switch[color]
what_to_do()

-- Or, the shorter alternative, just do
-- switch[color]()