Concept of Side-effect

[Gene Tani]

On Sep 16, 3:26 pm, Kaiduan Xie <kaidu...@REDACTED> wrote:
> Hi,
>
> Can someone explain what does side-effect means in Erlang? What is
> side-effect free function, and why we need to write side-effect free
> function? A concrete example is preferred.
>
> Thanks,
>
> kaiduan
>
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http://blog.tornkvist.org/blog.yaws?id=1239107937892262

http://www.cs.chalmers.se/Cs/Grundutb/Kurser/ppxt/HT2007/general/languages/armstrong-erlang_history.pdf
(PDF page 14)

and a FP vs. OO debate:

http://news.ycombinator.com/item?id=493963