30-seconds-of-code/snippets/roll.md

title, tags, expertise, firstSeen, lastUpdated

title	tags	expertise	firstSeen	lastUpdated
Rotate list elements	list	beginner	2020-11-02T19:15:44+02:00	2020-11-02T19:15:44+02:00

Moves the specified amount of elements to the start of the list.

• Use slice notation to get the two slices of the list and combine them before returning.

def roll(lst, offset):
  return lst[-offset:] + lst[:-offset]

roll([1, 2, 3, 4, 5], 2) # [4, 5, 1, 2, 3]
roll([1, 2, 3, 4, 5], -2) # [3, 4, 5, 1, 2]