[Jprogramming] Documentation on exiting J

[Don Kelly]

If in reference to 'exit' you are referring to J going of to never never 
land and not responding to anything- I fail to se where some J command 
is going to work. In Windows I can ctrl-alt-delete and shut down J (with 
loss of what I was doing) . Does this situation occur- yes , definitely, 
-likely because for some unknown reason, I have set up infinite looping 
or a situation where J simply chokes (message I get is J is running 
normally?)-   If it can interrupt a process , q' ' is great but If one 
cannot enter q ' ' because the machine is busy chasing its own tail then 
what good is it?

Don Kelly
On 20/01/2014 10:31 AM, Devon McCormick wrote:
> This is a good point and it's been brought up before.  I define
>     q=: 2!:55
> and enter
>     q''
> to exit J but it's not standard.  We should probably make "exit" more
> accessible.
>
>
> On Mon, Jan 20, 2014 at 1:23 PM, Blake McBride <blake at mcbride.name> wrote:
>
>> Greetings,
>>
>> Just providing some feedback....
>>
>> The fist thing I wanted to know when I started J was how to exit.  I did
>> some research and discovered 2!:55.  I then defined a verb and used that to
>> exit.  Therefore, in order to get a clean way to exit a new language, I had
>> to learn what a verb is, what system verbs were available, how to define
>> it, and how to load it.  (I know about ^d but think that is hardly a clean
>> way to exit.)
>>
>> Now, years later, I discover the pre-defined verb 'exit'.  I checked the
>> docs, especially "Learning J".  There is no mention of 'exit'!
>>
>> As someone who has played with many languages over the years, and in fact
>> an author of one, I respectfully suggest updating chapter 1 of Learning J
>> to tell the user how to exit.  Making a research project out of the first
>> obvious desire is an unnecessary impediment to a language acquision.
>>
>> Additionally, since I discovered 'exit', a comprehensive dictionary of
>> pre-defined verbs would be very helpful.  (I know about z, etc.)
>>
>> Thanks.  Just some thoughts...
>>
>> Blake McBride
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>
>