/ Ruby on Rails
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method

upcase

rails latest stable - Class: ActiveSupport::Multibyte::Chars

Method deprecated or moved

This method is deprecated or moved on the latest stable version. The last existing version (v5.2.3) is shown here.

upcase()
public

Converts characters in the string to uppercase.

'Laurent, où sont les tests ?'.mb_chars.upcase.to_s # => "LAURENT, OÙ SONT LES TESTS ?"