Perl: “while (1)” vs “for (;;)” – is there a speed difference? – the Perl syntax tree

• http://stackoverflow.com/questions/885908/while-1-vs-for-is-there-a-speed-difference
• https://metacpan.org/pod/B::Concise – walk Perl syntax tree, printing concise info about ops

I didn’t find the speed discussion too interesting, but I do find the Perl syntax tree introduction interesting.