30秒学会 Python 片段 – for_each.md

title: for_each
tags: list,beginner

Executes the provided function once for each list element.

Use a for loop to execute fn for each element in itr.

代码实现

def for_each(itr, fn):
  for el in itr:
    fn(el)

使用样例

for_each([1, 2, 3], print) # 1 2 3