-- Homework 23, problem 3 -- solution.

local function lookup(dict, key)
    local value = dict[key]
    if value == nil then
        return "(not found)"
    end
    return value
end

local player = { name = "Keiko", level = 7 }

print(lookup(player, "name"))
print(lookup(player, "email"))

local key = "level"
print(lookup(player, key))