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mlomnicki/string_concat.rb

Created September 27, 2010 14:18
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string_concat.rb
# << operator
original = "foo"
copy = original
copy << "bar"
copy # => "foobar"
original # => "foobar"
# += operator
original = "foo"
copy = original
copy += "bar"
copy # foobar
original # foo
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