const arr = [4, 0, -3, 5, 0, 9];let indexOfFirstZero = arr.indexOf(0);console.log(indexOfFirstZero); // Output: 1
const arr = [4, 0, -3, 5, 0, 9];
let indexOfFirstZero = arr.indexOf(0);
console.log(indexOfFirstZero); // Output: 1