Camelcase string

Python, String, Regexp · Nov 2, 2020

Converts a string to camelcase.

  • Use re.sub() to replace any - or _ with a space, using the regexp r"(_|-)+".
  • Use str.title() to capitalize the first letter of each word and convert the rest to lowercase.
  • Finally, use str.replace() to remove spaces between words.
from re import sub

def camel(s):
  s = sub(r"(_|-)+", " ", s).title().replace(" ", "")
  return ''.join([s[0].lower(), s[1:]])
camel('some_database_field_name') # 'someDatabaseFieldName'
camel('Some label that needs to be camelized')
# 'someLabelThatNeedsToBeCamelized'
camel('some-javascript-property') # 'someJavascriptProperty'
camel('some-mixed_string with spaces_underscores-and-hyphens')
# 'someMixedStringWithSpacesUnderscoresAndHyphens'

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