Re: Accessing values of a Hash object

$self->{i}={[(110,FB),(100,F)]};

This is almost certainly not doing what you think it's doing.

You take two lists - (110, FB) and (100, F) - and flatten them into a single list - (110, FB, 100, F). You then create an anonymous array that contains this list. You then create an anonymous hash where the (single) key is the stringified reference to your anonymous array. There is no value associated with this key.

Adding "use strict" and "use warnings" to your code will really help you to track down problems like this.

<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg

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Re^2: Accessing values of a Hash object by dReKurCe (Scribe) on Mar 24, 2007 at 06:19 UTC
Hi, Thanks for drawing attention to this syntax. Won't the value to the stringified key be in fact the anon array. That is the one flattened list. Its here that i thought I could do something like: `$self->{i}={[(110,FB),(100,F)]} ... $objinstance=Class::package(); $value=$objinstance->{i}; for (@$value){..do some code with (110,FB) and (100,F)}` [download]	[reply] [d/l]
Re^3: Accessing values of a Hash object by davorg (Chancellor) on Mar 26, 2007 at 08:32 UTC
Won't the value to the stringified key be in fact the anon array No. There won't be a value. You haven't set a value. You can check this easily with Data::Dumper. `$ perl -MData::Dumper -le 'print Dumper {[(110,FB),(100,F)]}' $VAR1 = { 'ARRAY(0x125560)' => undef };` [download] -- See the Copyright notice on my home node. "The first rule of Perl club is you do not talk about Perl club." -- Chip Salzenberg	[reply] [d/l]