[erlang-questions] What do you like the most about Erlang/OTP?

Erik Søe Sørensen <>
Wed Aug 29 11:33:14 CEST 2012

One thing I've found useful is the ease of having small embedded DSLs --
data-driven code, also known as. Writing small interpreters can do wonders
sometimes, and is easy in Erlang.
Here @work we used that for a project were we needed a set of
heuristics-based data transformation - "if the data has this form, apply
that transformation". And I've also written data-driven unit tests.
Erlang's literals are fairly good for this.
The generators of QuickCheck and its kin are another example of this.

(Erlang's far from unique wrt this, but it's a thing to like nonetheless.
Scala and Haskell are stronger at DSLs in some respects, I believe -- but I
don't think they have something like file:consult/1.)

And, as others have mentioned: good, strong encapsulation, in the form of
immutable values and process-level isolation - encourages separation of
concerns, increasing the chance of understandable code.

2012/8/27 Loïc Hoguin <>

> Hello,
> I am wondering what you guys like the most about Erlang/OTP, especially
> newcomers, maybe it changed your life, allowed you to climb the Everest (or
> at least sleep at night).
> I'll be synthesizing that into a few key points that I am hopeful will be
> reusable by anyone wanting to sell Erlang to their friends/work/clients.
> So help me by telling us what's so good about it!
> Thanks.
> --
> Loïc Hoguin
> Erlang Cowboy
> Nine Nines
> http://ninenines.eu
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> erlang-questions mailing list
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