Hang on, I figured it out.

@fool = grep (/foo/, @array);

FWIW you may rewrite that as

@fool = "@array" =~ /foo/g;

[download]

But I suspect you really want

my $fool = grep $_ eq 'foo', @array;

[download]

In reply to Re: Word frequency in an array by blazar
in thread Word frequency in an array by monkeybus

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