const animals = ['Dodo', 'Tiger', 'Penguin', 'Dodo'];
console.log(animals.lastIndexOf('Dodo'));
// expected output: 3
console.log(animals.lastIndexOf('Tiger'));
// expected output: 1
const animals = ['Dodo', 'Tiger', 'Penguin', 'Dodo'];console.log(animals.lastIndexOf('Dodo'));// expected output: 3console.log(animals.lastIndexOf('Tiger'));// expected output: 1