28 lines
718 B
Markdown
28 lines
718 B
Markdown
---
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title: String is anagram
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type: snippet
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tags: [string]
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cover: digital-nomad-8
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dateModified: 2020-11-02T19:28:05+02:00
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---
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Checks if a string is an anagram of another string (case-insensitive, ignores spaces, punctuation and special characters).
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- Use `str.isalnum()` to filter out non-alphanumeric characters, `str.lower()` to transform each character to lowercase.
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- Use `collections.Counter` to count the resulting characters for each string and compare the results.
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```py
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from collections import Counter
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def is_anagram(s1, s2):
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return Counter(
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c.lower() for c in s1 if c.isalnum()
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) == Counter(
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c.lower() for c in s2 if c.isalnum()
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)
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```
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```py
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is_anagram('#anagram', 'Nag a ram!') # True
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```
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