You neglected to also look at the any predicate or its overworking cousin grep. Or perhaps Perl 6's any() disjunction or its (forward in history) "backport" any() from Quantum::Superpositions.

my $chr = $_; # Naughty, naughty! You used $_ before but I need it now
+.

any { $chr eq $_ } qw( a b c );
grep { $chr eq $_ } qw( a b c );

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In reply to Re: Collapsing repetitive equality tests: || vs {} vs // (an observation) by diotalevi
in thread Collapsing repetitive equality tests: || vs {} vs // (an observation) by blogical

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