title: find_last
tags: list,beginner

Returns the value of the last element in the provided list that satisfies the provided testing function.

Use list comprehension and next() to return the last element in lst for which fn returns True.

代码实现

def find_last(lst, fn):
  return next(x for x in lst[::-1] if fn(x))

使用样例

find_last([1, 2, 3, 4], lambda n: n % 2 == 1) # 3