0 index on tutorials

Question

Is there a reason why the number of headings or components contained in a tutorial section are counted in zero indexes?
it shows 6/6 and you find 7 components when you go inside

Answer 1

They are not starting at zero: start at 1/n and finish at n/n what makes n components... Or there's a bug in a specific tutorial/section? Which are you refering?

Answer 2

I assume since index for arrays in most languages starts at 0.
Staying consistent 👌

Answer 3

unfortunately you seem to have completed all the tutorials. if not then you could reference this.

let's take swift for eg. if you have not completed your basics it will say 0/6, meaning of the 6 inside you have completed none, when you go in your topics will say 1/7 introduction , 2/7 ...., 3/7 ...