Need clarification please.

Question

var arr = [];

for (i = 2; i > 0; i --) {
arr [i] = i;
}

document.write(arr.length*i);

Answer 1

The answer will be 0.
Since you didn't define 'i' as 'let', it is global. Therefore, at the end of the loop, 'i' will be zero and arr = [null,1,2].