var herbivora = new Array('kambing', 'harimau', 'ayam'); var karnivora = new Array('sapi', 'serigala', 'monyet'); var omnivora = new Array('kuda', 'anjing', 'beruang'); var binatang = new Array(herbivora, karnivora, omnivora); binatang.forEach(function(value) { value.forEach(function(nama, value, index) { console.log('Indeks ke-' + '[' + value + ']' + ' ada binatang ' + nama ); }); });