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example of prepended class methods
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| class Foo | |
| def self.say | |
| p "hello from Foo" | |
| end | |
| end | |
| module Bar | |
| def say | |
| super | |
| p "hello from Bar" | |
| end | |
| end | |
| Foo.say # => "hello from Foo" | |
| Foo.singleton_class.prepend Bar | |
| Foo.say # => "hello from Foo"\"hello from Bar" | |
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