let herbivora = new Array('kambing', 'sapi'); let karnivora = new Array('harimau', 'serigala'); let omnivora = new Array('ayam', 'monyet'); let binatang = new Array(herbivora, karnivora, omnivora); console.log('Jumlah isi Array `binatang`: ' + binatang.length); console.log('Jumlah seluruh isi Array `binatang`: ' + (binatang[0].length + binatang[1].length + binatang[2].length));