8 lines
394 B
Ruby
8 lines
394 B
Ruby
original = "hello".freeze # prevents further modifications
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copy1 = original.dup # copies contents (without status)
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copy2 = original.clone # copies contents (with status)
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p copy1.frozen? #=> false
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p copy1 << " world!" #=> "hello world!"
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p copy2.frozen? #=> true
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p copy2 << " world!" #=> can't modify frozen String (RuntimeError)
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