21 lines
470 B
Markdown
21 lines
470 B
Markdown
---
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title: palindrome
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tags: string,intermediate
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---
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Returns `True` if the given string is a palindrome, `False` otherwise.
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Use `input_string.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.
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```py
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from re import sub
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def palindrome(input_string):
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s = sub('[\W_]', '', input_string.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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``` |