24 lines
513 B
Markdown
24 lines
513 B
Markdown
---
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title: Palindrome
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tags: string,intermediate
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firstSeen: 2018-02-01T10:19:59+02:00
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lastUpdated: 2020-11-02T19:28:27+02:00
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---
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Checks if the given string is a palindrome.
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- Use `str.lower()` and `re.sub()` to convert to lowercase and remove non-alphanumeric characters from the given string.
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- Then, compare the new string with its reverse, using slice notation.
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```py
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from re import sub
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def palindrome(s):
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s = sub('[\W_]', '', s.lower())
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return s == s[::-1]
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```
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```py
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palindrome('taco cat') # True
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```
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