Conclusion: always define global subroutines

You have no choice. Named subroutines are always global. You're lying to yourself when you said "local f".

What is a strange behavior is that variables got stuck with a value,

Why do you think that creating a variable somewhere should replace a variable in some unrelated sub?

In reply to Re^2: closure clarity, please by ikegami
in thread closure clarity, please by 7stud

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