Why not define it yourself?

   seq =. {{ ((,[`'',])/ |.y) `: 6 ''}}
   seq {{echo 1}}`{{echo 2}}`{{echo 3}}
1
2
3

 -E

On Thu, 30 Sep 2021, Michal Wallace wrote:

Today I discovered that `:0 executes the gerund in series from left to
right.

The execution order isn't specified in the docs (as far as I can tell), so
I wonder if it's an implementation detail subject to change, or if I can
rely on this?

Almost all of the cases where I want '..' as a statement handler have
to do with executing small imperative niladic instructions in sequence,
and it seems like `:0'' handles that perfectly:

 NB. after loading tangentstorm/j-kvm/vt:
 (bg@16b111122)`(fg@_15)`cscr`(goxy@5 5)`(puts@('hello',CRLF))`:0''

(set the colors, clear the screen, go to position 5,5 and emit 'hello'...
in that order!)

So... Can I count on this execution order?
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