These are already implemented in List::MoreUtils. The trick is the & prototype: 

sub any(&@) { my $cb = shift; $cb->() && return 1 for @_; 0 }
sub all(&@) { my $cb = shift; $cb->() || return 0 for @_; 1 }

if (all { $_ eq 'foo' } @array) {
   ...
}

[download]

By the way, == is the wrong operator to compare against 'foo'.
== is the numerical comparison operator.
eq is the string comparison operator.
See perlop.

In reply to Re: array comparison by ikegami
in thread array comparison by Anonymous Monk

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