Thanks, @AurelioDeRosa. Could you change this:

> &hellip; out of bounds, that is less than 0, or equal to or greater than the number of elements, it returns &hellip;

to this?

> &hellip; out of bounds — less than 0 or equal to or greater than the number of elements — it returns &hellip; 

Also, if you wouldn't mind removing "us" from "grants us access," that would be great.