[erlang-questions] if vs. case (long)

[Mats Cronqvist]

Ulf Wiger wrote:
> 2008/3/13, Jay Nelson <jay@REDACTED>:
>
>   
>>  My default instinct in erlang is to use case because I know it can
>>  always be easily expanded to include more branches, and it guarantees
>>  that all legal cases are enumerated so nothing is hidden in the order
>>  of branches:
>>
>>  Var = computeStuff(),
>>  case DebugOn of
>>     true -> log(Var);
>>     false -> ok
>>  end,
>>     
>
>
> A colleague of mine would most definitely write this as
>
>   DebugOn andalso log(Var).
>
> I'll save him the trouble of pointing that out. (:
>
> We've had some discussions about whether this is good style.
>
> BR,
> Ulf W
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> erlang-questions@REDACTED
> http://www.erlang.org/mailman/listinfo/erlang-questions
>   

  that's too verbose, and log/1 has to return a boolean. here's the 
Right Way(tm);

[log(Var) || DebugOn].

  mats

p.s. sarcasm! this construct is only to be used in obfuscated erlang 
competitions!

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