in reply to How to call a sub-routine ref

I prefer the arrow operator since it provides a nice, overt dereferencing visual suggesting it's pointing or referring to something else.

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Re^2: How to call a sub-routine ref
by greengaroo (Hermit) on Oct 19, 2012 at 20:18 UTC

    And if you don't have an argument to pass, isn't it weird to have empty parenthesis?

    $hashref->{'key'}->();

    There are no stupid questions, but there are a lot of inquisitive idiots.
    -- greengaroo
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[d/l]
      Why would it be weird? Parens around the arg list, even an empty args list, is the normal way of calling a sub. Omitting parens leads to many problems.
[reply]

      greengaroo:

      As a long-time C/C++/C# coder, I don't find the empty parenthesis weird. (Though it took me a (very) little while getting used to leaving off parenthesis altogether.)

      ...roboticus

      When your only tool is a hammer, all problems look like your thumb.

[reply]

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