On Wed, 4 Aug 2021, Thomas Bulka wrote:
Now I want to apply some monadic verbs to M, like:
N =: |: >: *: M
It seems to me, that the tacit way to combine the verbs |: >: *: makes
heavy use of [:, which makes the tacit form pretty verbose for such a
simple task:
tv =: [: |: [: >: *:
Since I seem to stumble above the need to chain some monadic verbs to
process some noun quite often, I wonder what the most idiomatic J-way is
to handle that kind of construct. Is it the tacit form tv from above? Is
there a better tacit form? Would it be the explicit form ev =: 3 : '|:
>: *: y'?
Another option is to use @:. The resulting construct has no fewer
characters (depending on style), but I think it expresses intent better,
and it composes more easily into larger trains.
For such a small verb, all methods seem acceptable. Context changes
everything, however; if you have a sequence of monadic applications inside
of a larger verb that wants to be tacit, make the whole thing tacit; if
the context wants to be explicit, make the whole thing explicit.
-E
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