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30-seconds-of-code/snippets/for_each.md
Isabelle Viktoria Maciohsek 19f636408c Make expertise a field
2022-03-01 20:27:27 +02:00

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---
title: Execute function for each list element
tags: list
expertise: beginner
firstSeen: 2020-03-15T12:54:08+02:00
lastUpdated: 2020-09-15T16:13:06+03:00
---
Executes the provided function once for each list element.
- Use a `for` loop to execute `fn` for each element in `itr`.
```py
def for_each(itr, fn):
for el in itr:
fn(el)
```
```py
for_each([1, 2, 3], print) # 1 2 3
```