21 lines
512 B
Markdown
21 lines
512 B
Markdown
---
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title: Execute function for each list element in reverse
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tags: list,beginner
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firstSeen: 2020-03-15T12:54:08+02:00
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lastUpdated: 2020-09-15T16:13:06+03:00
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---
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Executes the provided function once for each list element, starting from the list's last element.
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- Use a `for` loop in combination with slice notation to execute `fn` for each element in `itr`, starting from the last one.
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```py
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def for_each_right(itr, fn):
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for el in itr[::-1]:
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fn(el)
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```
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```py
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for_each_right([1, 2, 3], print) # 3 2 1
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```
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