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Re^2: Understanding the benefit of Given/When ...

by LanX (Canon)
on Mar 04, 2010 at 16:06 UTC ( #826731=note: print w/ replies, xml ) Need Help??


in reply to Re: Understanding the benefit of Given/When ...
in thread Understanding the benefit of Given/When ...

So, why even want a continue block on given/when? It's not needed, and isn't consistent.

I see what you mean, maybe I'm still too attached to the concepts of the workaround...(which is easier to understand for me)

Anyway I think you have a plus because you can use last for leaving without executing the continue block.

# using continue-block my @res; for (@test){ push (@res, "abc") if (/abc/); push (@res, "def") && last if (/def/); push (@res, "xyz") && next if (/xyz/); push (@res, "default"); } continue { print "\nFOR/CONT($_):",@res; @res=(); }

OUTPUT:

=== For/Continue FOR/CONT(abc): abc default

Cheers Rolf


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Re^3: Understanding the benefit of Given/When ...
by JavaFan (Canon) on Mar 04, 2010 at 16:36 UTC
    my @test = qw[abc def ghi xyz]; my @res; for (@test) { when (/abc/) {push @res, "abc"; continue} when (/def/) {push @res, "def"; last} when (/xyz/) {push @res, "xyz"; next} default {push @res, "default"} } continue { print "FOR/CONT($_): @res\n"; @res = (); } __END__ FOR/CONT(abc): abc default
      Sure that works, because one can also combine For/When!

      Cheers Rolf

        Which means you can have your continue block - just spell given as for - you'd save 2 keystrokes as well.

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