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themoxman/singleton_pattern.rb

Created January 8, 2015 21:34
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singleton_pattern.rb
16:27:29 davemox@Daves-MBP $ irb
>> class Configuration; def self.instance; @instance ||= new; end; def self.reset!; @instance = nil; end; end
=> :reset!
>> Configuration.new
=> #<Configuration:0x007fba691ff6a0>
>> Configuration.new
=> #<Configuration:0x007fba691f6af0>
>> Configuration.new
=> #<Configuration:0x007fba691ee788>
>> Configuration.new
=> #<Configuration:0x007fba691dedd8>
>> Configuration.instance
=> #<Configuration:0x007fba69180bc0>
>> Configuration.instance
=> #<Configuration:0x007fba69180bc0>
>> Configuration.instance
=> #<Configuration:0x007fba69180bc0>
>> Configuration.reset!
=> nil
>> Configuration.instance
=> #<Configuration:0x007fba691503d0>
>>
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