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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns a copy of <em>str</em> with all lowercase letters replaced with their uppercase counterparts. The operation is locale insensitive---only characters ``a'' to ``z'' are affected. - !ruby/struct:SM::Flow::VERB body: " "hEllO".upcase #=> "HELLO"\n" full_name: String#upcase is_singleton: false name: upcase params: | str.upcase => new_str visibility: public