Files
30-seconds-of-code/snippets/python/s/roll.md
2023-05-07 16:07:29 +03:00

23 lines
469 B
Markdown

---
title: Rotate list elements
type: snippet
language: python
tags: [list]
cover: colorful-pots
dateModified: 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.
```py
def roll(lst, offset):
return lst[-offset:] + lst[:-offset]
```
```py
roll([1, 2, 3, 4, 5], 2) # [4, 5, 1, 2, 3]
roll([1, 2, 3, 4, 5], -2) # [3, 4, 5, 1, 2]
```