I'd rather see something at the beginning or at the end of the statement.
like ^:toss (def ...)
or (def ...) ;;
On Tue, May 15, 2012 at 6:50 AM, Michał Marczyk
<michal.marc...@gmail.com> wrote:
> Workaround:
>
> (do (def foo (build-something-enormous)) nil)
>
> As for the reason for this behaviour -- probably non other than it's
> just the easiest thing for def in ClojureScript to do; "it" being to
> inherit the return value from the JavaScript assignment def compiles
> to.
>
> Sticking a void () around the assignment (so that (def foo ...) would
> do what (js* "void (~{})" (def foo ...)) does currently) would be a
> straightforward way of suppressing the returned value. I can put
> together the (trivial) patch to do that in :statement context in the
> presence of a flag if this seems useful. The REPL could just set this
> flag by default.
>
> Sincerely,
> Michał
>
>
> On 15 May 2012 06:14, kovas boguta <kovas.bog...@gmail.com> wrote:
>> 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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