Broadcasters and listeners in JUCE
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<a href="https://hackernoon.com/tagged/juce" target="_blank">Juce</a> uses <a href="https://hackernoon.com/tagged/braodcasters" target="_blank">broadcasters</a> and listeners pattern to propagate state changes. This is like classical observer pattern. Broadcasters are subjects and listeners are observers. Juce Framework provides predefined library to automate this process.