The 0 0 $ discards the output and returns an empty matrix with no display.
Compare:

   a=: 0 0 $ 1!:2&2

   b=: 1!:2&2

   a'hello'

hello

   b'hello'

hello

hello

On Thu, Nov 13, 2014 at 2:26 PM, 'Pascal Jasmin' via Beta <
[email protected]> wrote:

>    smoutput
> 0 0 $ 1!:2&2
>
> I've never understood why reshaping the output is desirable for any
> purpose.  If you define a verb as below, you also gain the ability to place
> it between any operations without changing the input to those operations.
>
>    pD
> 1!:2&2
>
> Perhaps of interest:
>
>
> http://www.jsoftware.com/jwiki/PascalJasmin/The%20power%20of%20one%20line%20statements
>
>
>
> ----- Original Message -----
> From: Henry Rich <[email protected]>
> To: [email protected]
> Cc:
> Sent: Thursday, November 13, 2014 5:15 PM
> Subject: Re: [Jbeta] smoutput leaves the cursor ill-placed
>
> The line was in a websocket handler.  It was simply
>
> smoutput wss0_jrx_
>
> Perhaps the problem is that the line is being invoked as a response to a
> socket event, without any keyboard action?
>
> The problem was at school, so I don't have the version on me, but I
> installed on all machines yesterday, and updated with Package Manager.
>
> Henry Rich
>
> On 11/13/2014 3:05 PM, chris burke wrote:
> > I cannot duplicate this, and smoutput works fine for me. What version are
> > you running, and how are you entering the smoutput sentence?
> >
> > On Thu, Nov 13, 2014 at 11:56 AM, Henry Rich <[email protected]>
> wrote:
> >
> >> smoutput 'xxx'
> >>
> >> prints xxx, but it leaves the cursor on the printed line, which is the
> >> last line of the display.  So, there is no easy way to type a new line.
> >>
> >> I suggest that it should append another empty line (indented 3 spaces)
> to
> >> allow for another command.
> >>
> >> Henry Rich
> >> ----------------------------------------------------------------------
> >> For information about J forums see http://www.jsoftware.com/forums.htm
>
>
>
> >>
> > ----------------------------------------------------------------------
> > For information about J forums see http://www.jsoftware.com/forums.htm
> >
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
> ----------------------------------------------------------------------
> For information about J forums see http://www.jsoftware.com/forums.htm
>
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