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Re^2: How can I retrieve the link with the highest number in it using Perl?

by virtus (Initiate)
on Jul 10, 2013 at 01:49 UTC ( #1043405=note: print w/ replies, xml ) Need Help??


in reply to Re: How can I retrieve the link with the highest number in it using Perl?
in thread How can I retrieve the link with the highest number in it using Perl?

Hi, tnx for your fast reply, now its working. But please, explain me something... why do I have to call the find_all_links function with no arguments to it so my @links array gets filled?

That was not much clear to me... one friend of mine was helping me with this script

tnx for your time.


Comment on Re^2: How can I retrieve the link with the highest number in it using Perl?
Re^3: How can I retrieve the link with the highest number in it using Perl?
by toolic (Bishop) on Jul 10, 2013 at 03:31 UTC
Re^3: How can I retrieve the link with the highest number in it using Perl?
by QM (Vicar) on Jul 10, 2013 at 11:50 UTC
    Why do I have to call the find_all_links function with no arguments to it so my @links array gets filled?
    Perhaps you were distracted by the multi-line statement?

    This:

    my @links = map {$_->text} grep {$_->text =~ m/^\d+$/} $mech->find_all_links();

    is equivalent to this:

    my @links = map {$_->text} grep {$_->text =~ m/^\d+$/} $mech->find_all +_links();

    (When I first read the original, I didn't see the lack of semicolon on line 1, which made me think it was an example from Damian's time reversed variables.)

    Then read right to left.

    -QM
    --
    Quantum Mechanics: The dreams stuff is made of

      Oh, now I see... tnx man!

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