[Tutor] string reversal using [::-1]

[Vikas YADAV]

Question: Why does "123"[::-1] result in "321"?

 

MY thinking is [::-1] is same as [0:3:-1], that the empty places defaults to
start and end index of the string object.

So, if we start from 0 index and decrement index by 1 till we reach 3, how
many index we should get? I think we should get infinite infinite number of
indices (0,-1,-2,-3.).

 

This is my confusion.

I hope my question is clear.

 

Thanks,

Vikas