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SrdjanCoric/example2.rb

Created September 24, 2017 20:36
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example2.rb
a = 'hello'
puts a # -> hello
puts a.object_id # -> 70368468160540 (this number will be different for you)
a.upcase
puts a # -> hello
puts a.object_id # -> 70368468160540 (this number will be the same as the one above)
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