21 lines
496 B
Markdown
21 lines
496 B
Markdown
---
|
|
title: Test if some list elements are truthy
|
|
tags: list,intermediate
|
|
firstSeen: 2019-08-20T11:42:30+03:00
|
|
lastUpdated: 2020-11-02T19:28:35+02:00
|
|
---
|
|
|
|
Checks if the provided function returns `True` for at least one element in the list.
|
|
|
|
- Use `any()` in combination with `map()` to check if `fn` returns `True` for any element in the list.
|
|
|
|
```py
|
|
def some(lst, fn = lambda x: x):
|
|
return any(map(fn, lst))
|
|
```
|
|
|
|
```py
|
|
some([0, 1, 2, 0], lambda x: x >= 2 ) # True
|
|
some([0, 0, 1, 0]) # True
|
|
```
|