Hi all.

I am using this same approach from "Intermediate Perl" to check if an element of two dimensional array exist in a hash: 

my %hash = map { $_, 1 } @castaways;
foreach my $person (@list_1) {
    if( $hash{$person} ) {
        print "$person is a castaway.\n";
        #do something more
    }
}

[download]
My problem is, the strings I'll have in @castaways and @list_1 are uppercase as well as lowercase. So as of now, the if condition fails if the string in @castaways is 'Hello' while in @list_1 it is 'hello'.

Is there any way to make the if condition do case insensitive match? I am trying to avoid making any change in the @castaways and @list_1 as they are taken from different sources and will be sent to other applications for processing. I don't know if changing case would mess things up for others.

UPDATE: Marked as solved in subject.

In reply to [SOLVED: Can we make hash key check in 'if' condition case insensitive? by Perl300

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