module Enumerable
Public Instance Methods
to_h()
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Converts enum
to a Hash.
Each element of enum
must be a single item, or an array of two items. Duplicate keys are overwritten in order.
[].to_h #=> {} [1,2].to_h #=> {1=>nil, 2=>nil} (1..2).to_h #=> {1=>nil, 2=>nil} [[1,2],[3,4]].to_h #=> {1=>2, 3=>4} [[1,2],[1,4]].to_h #=> {1=>4}
# File lib/enum_to_h.rb, line 14 def to_h hsh = {} each do |k,v,*x| raise ArgumentError, "invalid number of elements (#{x.length+2} for 1..2)" if x.any? hsh[k] = v end hsh end