The output of the code gives 2 but I don't understand why??

Question

var arr = [];
for(var i = 5; i > 0; i--)
arr.push(i);
console.log(arr[3]);

Answer 1

The loop makes these assignments:
arr[0] = 5
arr[1] = 4
arr[2] = 3
arr[3] = 2
arr[4] = 1

Answer 2

Explaining the for loop:
arr changes from:
[]
To
[5]
To
[5,4]
To
[5, 4, 3]
To
[5, 4, 3, 2]
To
[5, 4, 3, 2, 1]
Since 2 is the 4th element, it is the one represented by arr[3]

Answer 3

Or simply 5-3=2

Answer 4

Thank you, thank you, thank you, John Wells Qasem Prometheus ¯\_(ツ)_/¯ 🇸🇬