const array1 = [5, 12, 8, 130, 44];

let index = 2;

console.log(`An index of ${index} returns ${array1.at(index)}`);
// Expected output: "An index of 2 returns 8"

index = -2;

console.log(`An index of ${index} returns ${array1.at(index)}`);
// Expected output: "An index of -2 returns 130"