Обращение к элементу массива

const clients = [{id: 1, name: '100'}, {id: 2, name: '200'}];

const findFirstClient = (arr: typeof clients) => {
    return arr[0];
}

const firstClient = findFirstClient(clients);

firstClient.name = 'one';

console.log(clients);

const firstClientAlternative = clients[0];

firstClientAlternative.name = 'two';

console.log(clients);