In case it's useful, here is a fully lazy variant of 'apply concat':
https://github.com/plumatic/plumbing/blob/master/src/plumbing/core.cljx#L179
-Jason
On Friday, June 3, 2016 at 2:26:43 AM UTC+8, Andy L wrote:
>
> Hi,
>
> I have a riddle I am not sure how to solve:
> ```
> user=> (defn
> 1- concat is defined to have 4 different arities: 0-arg, 1-arg, 2-arg,
> 3+args. In order to figure out which arity to use, apply has to realize at
> least as many elements as the minimum number of args required by the
> largest arity, which in this case is 3
> 2- apply has a small bug that
Two things at play here:
1- concat is defined to have 4 different arities: 0-arg, 1-arg, 2-arg, 3+args.
In order to figure out which arity to use, apply has to realize at least as
many elements as the minimum number of args required by the largest arity,
which in this case is 3
2- apply has a
Hi,
I have a riddle I am not sure how to solve:
```
user=> (defn just-a-demo-seq[] (println "in just-a-demo-seq") [1 2 3 4 5 6
7 8 9])
#'user/just-a-demo-seq
user=> (def do-not-print-it (apply concat (repeatedly just-a-demo-seq)))
in just-a-demo-seq
in just-a-demo-seq
in just-a-demo-seq
in