def clean_description desc
      strip_stopwords(
        desc.gsub(XML_TAG_FILTER,' ')
            .gsub(EMAIL_FILTER,'')
            .gsub(URL_FILTER,'')
            .gsub(GENDER_FILTER,'')
            .gsub(NEW_LINES,'')
            .gsub(SYMBOL_FILTER,' ')
            .gsub(WHITESPACE,' ')
            .gsub(WORDS_IN_BRACKETS, '\1')
            .gsub(CODE_TOKEN_FILTER,'')
            .downcase
            .strip
        )
    end
def clean_description desc
      strip_stopwords(
        desc.gsub(XML_TAG_FILTER,' ')
            .gsub(EMAIL_FILTER,'')
            .gsub(URL_FILTER,'')
            .gsub(GENDER_FILTER,'')
            .gsub(NEW_LINES,'')
            .gsub(SYMBOL_FILTER,' ')
            .gsub(WHITESPACE,' ')
            .gsub(WORDS_IN_BRACKETS, '\1')
            .gsub(CODE_TOKEN_FILTER,'')
            .downcase
            .strip
        )
    end
converts string into a cleaner version
 @param  desc [String] job description

 @return [String] clean and lowercase version of input