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Re: Re: Confused by a Conditional

by damian1301 (Curate)
on Jun 10, 2001 at 19:40 UTC ( #87300=note: print w/replies, xml ) Need Help??

in reply to Re: Confused by a Conditional
in thread Confused by a Conditional


Tiptoeing up to a Perl hacker.
Dave AKA damian

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Re: Confused by a Conditional
by Abigail (Deacon) on Jun 10, 2001 at 20:44 UTC
    Oh, goodie, you used an if. Care to quote the manual where it says that in the context of an if, eq propagates some magic to or to do what you suggest it is doing?

    Anyway, the following code uses if instead of unless, and it does not print "Damian is right"....

    #!/usr/bin/perl -w use strict; my $key = 'LOCUSLINK'; if (($key) eq ('ID' or 'TITLE' or 'GENE' or 'CYTOBAND' or 'LOCUSLINK' or 'CHROMOSOME' or 'SCOUNT')) { print "Damian is right\n"; }

    Your code only happens to do the right think if $key equals ID, or it's different from any of the clauses. It'll fail to work when the key equals TITLE, GENE, CYTOBAND, LOCUSLINK, CHROMOSOME, or SCOUNT.

    -- Abigail

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[Eily]: bed to Glasgow? Where do you find those?
[marto]: hmm, Jeff Google for "flights from Bedford to Glasgow" shows lots of results :p

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