Given a question like what is the answer and please explain.

Question

var arr = [2,5,2,4];
var x = 1;
for(var i = 0; i < arr.length; i++) {
if(arr[i]%2 === 0)
x *= arr[i];
}
document.write(x);

Answer 1

The above code calculates the product of all even numbers in the given array.

arr[i] % 2 === 0
// arr[i] is even.

document.write(x)
// Output: 2 * 2 * 4 = 16

Answer 2

thanks for the explanation