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my @array1 = qw(one two three);
my @array2 = ("one" . $" . "two", "three");

if ("@array1" eq "@array2") {
    print 'They are the same', $/;   # no, they are NOT
}

my @array1 = qw(one two three);
my @array2 = qw(onetwo three);

if ( do{ local $" = ''; "@array1" eq "@array2"} ) {
    print 'They are the same', $/;   # no, they are NOT
}

my @array1 = ("one", "two" . $" . "three");
my @array2 = ("one" . $" . "two", "three");

if ( do{ @array1 == @array2 and "@array1" eq "@array2"} ) { 
    print 'They are the same', $/;    # no, they are NOT
}