Module: Enumerable

Included in:
Ole::Storage::DirClass::Dir, Ole::Storage::MetaData, Ole::Types::PropertySet, Ole::Types::PropertySet::Section
Defined in:
lib/ole/support.rb

Overview

:nodoc:

Instance Method Summary collapse

Instance Method Details

#group_by ⇒ Object

1.9 backport



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# File 'lib/ole/support.rb', line 48

def group_by
	hash = Hash.new { |h, key| h[key] = [] }
	each { |item| hash[yield(item)] << item }
	hash
end

#sum(initial = 0) ⇒ Object 



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# File 'lib/ole/support.rb', line 56

def sum initial=0
	inject(initial) { |a, b| a + b }
end