@main[]
$t[^table::create{c1	c2	c3}]
^t.insert[ $.c2(1) ]
^try-catch{ $t.c3[^hash::create[]] }

^json:string[$t]

$t[^table::create[nameless]{}]
^t.insert[ $.10(10) $.12[12] ]
^try-catch{ ^t.insert[ $.1[ok] $.2{bad} ] }

^json:string[$t]