Mistake in Replace Loops using Recursion

Hello! I have fond some mistake in “Replace Loops using Recursion” from “Basic JavaScript”

However, notice that multiply(arr, n) == multiply(arr, n - 1) * arr[n - 1] . That means you can rewrite multiply in terms of itself and never need to use a loop.

In my opinion this equation shold look like multiply(arr, n) == multiply(arr, n - 1) * arr[n]

That suggestion is not correct. Arrays index at zero in Javascript. The provided text is correct.