[erlang-questions] Maps branch and disclaimers

Jesper Louis Andersen <>
Mon Oct 28 17:07:00 CET 2013


On Mon, Oct 28, 2013 at 5:05 PM, Anthony Ramine <> wrote:

> I would avoid any ‘:’ character in the new operator because Jesper once
> had the idea of introducing strict generators with ‘<:-‘ and ‘<:=‘, which
> would not skip items that doesn’t match (e.g. "[ X || {ok, X} <:-
> [{error,Reason}] ]" would crash).


Yes. It is a problem I have encountered quite often, where the code throws
away terms deliberately and you have no way to fix this but to use a
standard lists:map/2 call.


-- 
J.
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