Slicing

Question

Ok my question is in negative indexing are there exclusive and inclusive index there?
Also are spaces and punctuation marks counted?

Answer 1

1. Tag the relevant programming language. It depends on the programming language how indexable collections are sliced.

2a. Write a code example to test hypotheses on slicing.

2b. Consult the documentation.

Answer 2

All kinds of characters are counted.
In a string "Hello!", the indexing will be:

0 1 2 3 4 5
H e l l o !

On the other hand, negative indexing will be:

-6 -5 -4 -3 -2 -1
H e l l o !

Some examples:
a = "Hello!"
print(a[1:3]) # "el"
print(a[-5:-2]) # "ell"

Basically, the index before colon (:) is inclusive and after it is exclusive. Just remember to count from left to right.