I think this is a pretty valid feature request.

The main question is, can this be done without having vars in clojurescript.

One way to do it is to surpress output somehow, under certain conditions.

Either as a token at the end of a repl input, or in the semantics of def itself.

I don't have an ideal specific solution here, but I've noticed this
problem as well and found it pretty annoying.

There should be a way to solve it that is a reasonable compromise.



On Mon, May 14, 2012 at 11:13 PM, Mark Engelberg
<mark.engelb...@gmail.com> wrote:
> On Mon, May 14, 2012 at 4:41 PM, David Nolen <dnolen.li...@gmail.com> wrote:
>>
>> On Mon, May 14, 2012 at 7:27 PM, Mark Engelberg <mark.engelb...@gmail.com>
>> wrote:
>>>
>>> (def tree (function-that-produces-an-enormous-tree 2))
>>
>>
>> Isn't doing this at the top level bad form?
>
>
> The purpose of a REPL is for interactive experimentation.  I want to give
> names to the things I'm building so I can play with them in the REPL.
> Nothing bad form about that.
>
>>
>> Also I don't see how this isn't solved by modifying some habits.
>>
>> (defn test-tree [] (function-that-produces-an-enormous-tree 2))
>> (time (test-tree))
>>
>
> time prints out the value that is computed.  The above example would suffer
> the same problem of printing out the tree at the REPL.  You could do
> something like (time (do (test-tree) nil)) to suppress printing, but if you
> want to do further interactive manipulations to the tree, you'd end up
> recomputing it.  So then, you get into workarounds involving delay.  It
> starts to get ugly, I think.
>
> Clojure's ability to give names to things without printing the values is a
> feature I use every day in my interactive explorations.
>
>
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