27 lines
778 B
Markdown
27 lines
778 B
Markdown
---
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title: camel
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tags: string,regexp,intermediate
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---
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Converts a string to camelcase.
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Break the string into words and combine them capitalizing the first letter of each word, using a regexp.
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```py
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import re
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def camel(str):
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s = re.sub(r"(\s|_|-)+","",
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re.sub(r"[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+",
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lambda mo: mo.group(0)[0].upper() + mo.group(0)[1:].lower(),str)
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)
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return 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'); # 'someLabelThatNeedsToBeCamelized'
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camel('some-javascript-property'); # 'someJavascriptProperty'
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camel('some-mixed_string with spaces_underscores-and-hyphens'); # 'someMixedStringWithSpacesUnderscoresAndHyphens'
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```
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