Modern Core Perl Slides

3 Responses

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1. Iñigo says

   Hi,

   First: thanks for sharing!

   Second: I’m very happy to see notices I didn’t know, like the HTTP::Tiny in core, etc too many time without read delta or brew new versions…

   Greetings!

   November 13, 2011, 21:48 Reply
2. Martin J. Evans says

   Slide 24 of 61 Smart Match Examples

   In Perl 5.10.0
   perl -le ‘@a=(1,2,3); print “found\n” if @a ~~ 2;’
   found

   perl -le ‘@a=(1,2,3); print “found\n” if 2 ~~ @a;’
   found

   In Perl 5.10.1 and above:

   perl -le ‘@a=(1,2,3); print “found\n” if @a ~~ 2;’
   perl -le ‘@a=(1,2,3); print “found\n” if 2 ~~ @a;’
   found

   You example uses @foo ~~ bar which does not work since 5.10.0. To find scalar in array the array has to be the second.

   November 14, 2011, 13:16 Reply
   • Dave Cross says

     You’re absolutely right, of course. In my defence, that slide is in the 5.10 section, so the code does work.

     But I should reverse the order of the operands in all of those examples.

     Thanks.

     November 14, 2011, 13:30 Reply