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--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns the extension (the portion of file name in <em>path</em> after the period). - !ruby/struct:SM::Flow::VERB body: " File.extname("test.rb") #=> ".rb"\n File.extname("a/b/d/test.rb") #=> ".rb"\n File.extname("test") #=> ""\n File.extname(".profile") #=> ""\n" full_name: File::extname is_singleton: true name: extname params: | File.extname(path) -> string visibility: public