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18 lines
399 B
Go
18 lines
399 B
Go
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package observer
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func ExampleObserver() {
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subject := NewSubject()
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reader1 := NewReader("reader1")
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reader2 := NewReader("reader2")
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reader3 := NewReader("reader3")
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subject.Attach(reader1)
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subject.Attach(reader2)
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subject.Attach(reader3)
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subject.UpdateContext("observer mode")
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// Output:
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// reader1 receive observer mode
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// reader2 receive observer mode
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// reader3 receive observer mode
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}
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