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In which case do we use 2 colons i.e. [::] in list function ? Is this what we call stepper ?

We can also use these 2 colons for reversing a string in list ? For eg. [::-1] This will reverse the string. Is it correct that same way we can reverse it with the reverse method? For eg. sample = input(" ")[::-1] Above code will reverse the string. And the same way with reverse method also, can we do the same ? For eg. sample = input(" ") sample.reverse() print(sample) Could someone please help me out with this uncertainty regarding :: and reversing a string ? Thank you in advance!

27th Jun 2021, 10:26 AM
Sanchit Bahl
Sanchit Bahl - avatar
2 Antworten
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What exactly are you unsure about? Have you tried it out in the playground? indexing -- <iterable>[start:stop:step]
27th Jun 2021, 10:30 AM
Slick
Slick - avatar
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Slick I was unsure about the slicing. But abol cleared it by sharing his post. Thanks. But still there are still 2 doubts. First is reversing a string. Is it possible to do it without using the reverse. method? Second is agaim about slicing but using - (minus sign). Could you please give me an example with explanation for slicing with minus at the end? I would be highly obliged.
27th Jun 2021, 10:45 AM
Sanchit Bahl
Sanchit Bahl - avatar