How is this done in ruby?

Question

ruby

Which one can rewrite (python) 'hello world'[10:0:-2] to ruby?

Answer 1

It will not work in ruby ​​as laconic as with Python's slice notation.

'hello world'.reverse.scan(/(.).{1}/).join
=> "drwol"
'hello world'.reverse.scan(/(.).{2}/).join
=> "doo"