http://www.perlmonks.org?node_id=11132339


in reply to Re^2: Attempting to use $_ in "sub" inside "map"
in thread Attempting to use $_ in "sub" inside "map"

In languages without lexically scoped variables or something approximating them, there's not really any such thing as a closure. You can still have first-class functions (i.e. coderefs); they just have no need to close over anything.

  • Comment on Re^3: Attempting to use $_ in "sub" inside "map"

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Re^4: Attempting to use $_ in "sub" inside "map"
by LanX (Sage) on May 10, 2021 at 14:40 UTC
    > first-class functions (i.e. coderefs)

    Doesn't equal closures. OK PHP is using that terminology, but it's wrong ...

    ... anyway who's using PHP anymore ;-)

    > In languages without lexically scoped variables or something approximating them

    do you have an example for such a language with functions as first class objects?

    Cheers Rolf
    (addicted to the Perl Programming Language :)
    Wikisyntax for the Monastery