i don't get what´s wrong with my code :(

Question

I just wrote this simple code and it always gets one time more

function getPower(num1, num2) {
for (i = num1, x = 1; x <= num2 ; i *= num1, x++);
return i
}

getPower(5, 2); //The output would be 125 here

To fix that, i just set x=2 and it's working fine, but can someone explain why it doesnt work with x=1?

Answer 1

You set i to num1, so you basically already did the first iteration of the loop. You can set it to i = 1 if you want to start at x = 1, or you change the x <= num2 to x < num2 and start at x = 1 or you simply start at x = 2, all three of these solutions should work.