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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 ( [id://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.

Replies are listed 'Best First'.
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 (Parson) 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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