관리-도구
편집 파일: group_by-i.yaml
--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: Returns a hash, which keys are evaluated result from the block, and values are arrays of elements in <em>enum</em> corresponding to the key. - !ruby/struct:SM::Flow::VERB body: " (1..6).group_by {|i| i%3} #=> {0=>[3, 6], 1=>[1, 4], 2=>[2, 5]}\n" full_name: Enumerable#group_by is_singleton: false name: group_by params: | enum.group_by {| obj | block } => a_hash visibility: public