const animals = ['pigs', 'goats', 'sheep'];

const count = animals.push('cows'); console.log(count); // Expected output: 4 console.log(animals); // Expected output: Array ["pigs", "goats", "sheep", "cows"]

animals.push('chickens', 'cats', 'dogs'); console.log(animals); // Expected output: Array ["pigs", "goats", "sheep", "cows", "chickens", "cats", "dogs"]