For function calls (i.e. non-OO) the parentheses are sometimes necessary. I can never remember the exact formulations - depends very much on whether strict subs are enabled, and on prototypes. For function calls, best to always include the parentheses, unless it's a constant sub, or you are sure that the sub has been defined with an empty prototype.

For method calls on the other hand, if there are no arguments being passed, the parentheses are entirely unnecessary. Use whatever you think looks nicest.

perl -E'sub Monkey::do{say$_,for@_,do{($monkey=[caller(0)]->[3])=~s{::}{ }and$monkey}}"Monkey say"->Monkey::do'

In reply to Re: Any differences between method and method()? by tobyink
in thread Any differences between method and method()? by sophate

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