meaning of pythonic code s[::-1]

Question

I tested the following python code which reverses a string

>> s = 'abcd'
>> s[::-1]
>> 'dcba'

But I am confused, what exactly the two comma and negative one does it the code ?

A great description is given here: http://stackoverflow.com/questions/509211/explain-pythons-slice-notation — mitoRibo, Jul 21 '16 at 00:42

score 0 · Accepted Answer · edited May 23 '17 at 12:22

0

read up on list slicing.
This is the same question asked by another user. Explain Python's slice notation

edited May 23 '17 at 12:22

Community

answered Jul 21 '16 at 00:41

monoshiro

1 Answers1