One thing that bit me a few months ago: sort in scalar context is undefined.

That isn't a big deal until you do this in a sub: 

return( sort @some_array );

[download]

that is supposed to return a sorted list. And then you wonder how many elements the list contains: 

my $count = get_the_sorted_list();  #Scalar context propagates to sort

[download]

That's pretty annoying when you happen to do it, and pretty important to know about so you don't. I sure was surprised the first time I encountered it.

/J

In reply to Re: What I Most Recently Learned in Perl, But Should Have Already Known by jplindstrom
in thread What I Most Recently Learned in Perl, But Should Have Already Known by liverpole

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