The only place I've found the comment macro to be useful is at the 
top-level of a ns to hold a bunch of test/temp code.

On Monday, June 9, 2014 11:22:10 PM UTC-5, Taegyoon Kim wrote:
>
> Ah, reader macro! Thanks!
>  
> Ignore next form (#_)
> The form following #_ is completely skipped by the reader. (This is a more 
> complete removal than the *comment* 
> <http://clojure.github.io/clojure/clojure.core-api.html#clojure.core/comment> 
> macro which yields nil).
>  
> (from *http://clojure.org/reader* <http://clojure.org/reader>)
>  
> Conclusion: Don't use the *comment* 
> <http://clojure.github.io/clojure/clojure.core-api.html#clojure.core/comment> 
> macro. It makes runtime overhead.
>  
>
> 2014년 6월 10일 화요일 오후 12시 22분 50초 UTC+9, guns 님의 말:
>
>> On Mon  9 Jun 2014 at 07:07:42PM -0700, Taegyoon Kim wrote: 
>> > And you can't do this: 
>> > user=> (let [x 1 (comment y 2)] x) 
>>
>> Alex Miller (?) once pointed out that the #_ reader macro can be chained 
>> like this: 
>>
>> (let [x 1 #_#_y 2] x) 
>>
>> Pretty nifty. 
>>
>>     guns 
>>
>

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