20 lines
390 B
Markdown
20 lines
390 B
Markdown
---
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title: List similarity
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tags: list,beginner
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firstSeen: 2019-08-20T16:12:11+03:00
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lastUpdated: 2020-11-02T19:28:35+02:00
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---
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Returns a list of elements that exist in both lists.
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- Use a list comprehension on `a` to only keep values contained in both lists.
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```py
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def similarity(a, b):
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return [item for item in a if item in b]
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```
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```py
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similarity([1, 2, 3], [1, 2, 4]) # [1, 2]
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```
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