Since the REPL tries to print out the lazy sequence it ends up forcing
evaluation as well.

If you do something like (def foo (some-lazy-seq)) in the repl it
won't get forcibly realized as before.

This is a very common source of misconception, you're not alone :)

Regards,
BG

On Tue, Jul 31, 2012 at 6:07 PM, Pierre-Henry Perret <phper...@gmail.com> wrote:
> mapv do the eval.
>
> Should be a reflex: when something works in the repl, but not in the
> code...it's lazy !



-- 
Baishampayan Ghose
b.ghose at gmail.com

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