local proc f1(x) print(x); return x end

# t is a constant table, its contents can change but t itself cannot be assigned to
local constant t := [ "foo"    ~ "bar"
                    , "baz"    ~ 6
                    , fortytwo ~ 7
                    , 42       ~ [ 1, 2, 3 ]
                    , "zz"     ~ f1
                    ];
t[ f1 ] := true; # keys that aren't strings or numbers need to be added via assignments

for key, val in pairs( t ) do
    printf( "%24s (%9s) -> (%9s) %-24s \n", key, type( key ), type( val ), val )
od