[Jprogramming] Request for comments: multiple assignment

[HenryRich]

Marshall wants assignment that does nothing if the name is already 
assigned.  He called this 'default', which it is in a high-level sense.  
Most of us mean default in a low-level sense, i. e. always assign the 
name, but use a default value if the user doesn't give one.

Henry Rich

On 7/11/2017 8:37 PM, Raul Miller wrote:
> Ok, so, just to be clear - this has nothing to do with default assignment?
>
> That said, it's probably intentional that there's no verb form of =:
> (or =.). For example, given
>
> is=: 4 :'(x)=:y'
>
> consider:
>
>    'abc' is"0 i.3 4 5
>
> Questions:
>
> (1) what is
>
>     a+b+c
>
> (2) how is this useful?
>
> Thanks,
>


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