21 lines
606 B
Markdown
21 lines
606 B
Markdown
---
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title: decapitalize
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tags: string,intermediate
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---
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Decapitalizes the first letter of a string.
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- Use list slicing and `str.lower()` to decapitalize the first letter of the string.
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- Use `str.join()` to combine the lowercase first letter with the rest of the characters.
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- Omit the `upper_rest` parameter to keep the rest of the string intact, or set it to `True` to convert to uppercase.
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```py
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def decapitalize(s, upper_rest = False):
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return ''.join([s[:1].lower(), (s[1:].upper() if upper_rest else s[1:])])
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```
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```py
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decapitalize('FooBar') # 'fooBar'
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decapitalize('FooBar', True) # 'fOOBAR'
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```
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