function reverseArray(arr) {
let numbers2 = [];
for (let i = arr.length - 1; i >= 0; i--) {
numbers2.push(arr[i]);
}
return numbers2;
}
let numbers1 = [3, 4, 5, 8, 1, 0, 9];
console.log(reverseArray(numbers1));// [9,0,1,8,5,4,3]