Created
September 13, 2015 17:16
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Multi-Value Hash
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| require 'set' | |
| #h = Hash.new { |hash, key| hash[key] = [] } | |
| h = Hash.new { |hash, key| hash[key] = Set.new } | |
| h[:key] << "value 1" | |
| h[:key] << "value 2" | |
| h[:key2] << 1 | |
| puts h | |
| puts h[:key].class.name |
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