Module: Enumerable

Defined in:
lib/more_ruby/enumerable.rb

Instance Method Summary collapse

Instance Method Details

#group_by ⇒ Object 



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# File 'lib/more_ruby/enumerable.rb', line 3

def group_by
    result = {}
    self.each do |value|
        key = yield(value)
        (result[key] ||= []) << value
    end
    result
end