31 lines
902 B
Markdown
31 lines
902 B
Markdown
---
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title: Camelcase string
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tags: string,regexp
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cover: digital-nomad-9
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firstSeen: 2019-08-21T08:59:54+03:00
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lastUpdated: 2020-11-02T19:27:07+02:00
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---
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Converts a string to camelcase.
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- Use `re.sub()` to replace any `-` or `_` with a space, using the regexp `r"(_|-)+"`.
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- Use `str.title()` to capitalize the first letter of each word and convert the rest to lowercase.
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- Finally, use `str.replace()` to remove spaces between words.
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```py
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from re import sub
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def camel(s):
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s = sub(r"(_|-)+", " ", s).title().replace(" ", "")
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return ''.join([s[0].lower(), s[1:]])
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```
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```py
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camel('some_database_field_name') # 'someDatabaseFieldName'
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camel('Some label that needs to be camelized')
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# 'someLabelThatNeedsToBeCamelized'
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camel('some-javascript-property') # 'someJavascriptProperty'
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camel('some-mixed_string with spaces_underscores-and-hyphens')
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# 'someMixedStringWithSpacesUnderscoresAndHyphens'
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```
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