How to call / push an elem to a hash of array ?

[LI NGOK LAM]

my (%LIST, @other_list);

@other_list = ( Unknown Length Data Elems );

foreach my $col (@lists)
{
for (@other_list)
{  
if ( exist $LIST{$col}[0] ) { Do_smth_2 }  # But ERROR either

What should I write here ? So can push vars to $LIST{$col}
}
}


Thanks in advise

Re: How to call / push an elem to a hash of array ?

[Zeus Odin]

What are you trying to do? If you could include a brief example, it
would be nice.

Li Ngok Lam wrote:
 my (%LIST, @other_list);
 
 @other_list = ( Unknown Length Data Elems );
 
 foreach my $col (@lists)
 {
 for (@other_list)
 {  
 if ( exist $LIST{$col}[0] ) { Do_smth_2 }  # But ERROR either
 
 What should I write here ? So can push vars to $LIST{$col}
 }
 }
 
 
 Thanks in advise
 




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Re: How to call / push an elem to a hash of array ?

[John W. Krahn]

Li Ngok Lam wrote:
 
 my (%LIST, @other_list);
 
 @other_list = ( Unknown Length Data Elems );
 
 foreach my $col (@lists)
 {
 for (@other_list)
 {
 if ( exist $LIST{$col}[0] ) { Do_smth_2 }  # But ERROR either

If you want to test if the array has any elements you can do this:

  if ( @{$LIST{$col}} ) { Do_smth_2 }  # But ERROR either


 What should I write here ? So can push vars to $LIST{$col}

  push @{$LIST{$col}}, 'something';

 }
 }


John
-- 
use Perl;
program
fulfillment

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