slicing Python

Question

Someone can explain me why the answer is "l"?:

s="Welcome"
print(s[2::-4])
Output: l

Answer 1

The first number says where you start. That's index 2 - 'l'.

The second number says where you stop; if there's no value, it means 'till nothing is left'.

The third value says how big the steps are, and in which direction. Minus means 'backwards'.

So our next letter after l would be 4 steps to the left.

Unfortunately there isn't anything there - string's already over.

Read this as well:

https://www.sololearn.com/learn/JUMP_LINK__&&__Python__&&__JUMP_LINK/2453/?ref=app