Files constitute scopes, even when "incorporated" via do. Just declare any our variables used within the subs at the top of the separate file, or better within the sub bodies they are used in, (as well as in the main file).

Examine what is said, not who speaks -- Silence betokens consent -- Love the truth but pardon error.
"Science is about questioning the status quo. Questioning authority".
In the absence of evidence, opinion is indistinguishable from prejudice.
"I'd rather go naked than blow up my ass"

In reply to Re: Best practices - if any? by BrowserUk
in thread Best practices - if any? by AriSoft

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