Write page for the Mediator Design Pattern. #91
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Mediator pattern
An advantage of CoffeeScript compared to JavaScript is its ability to check for array membership with the `in` keyword. A feature it borrowed from Python.
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if req.status in [200, 304]
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Do you mean you want to revert line 51 to if req.status in [200, 304] ?
Please see #discussion-diff-6180754 as for why we used the if req.status in successResultCodes syntax.
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Could you provide an example of how not using this pattern could complicate matters? Maybe a before and after picture? I ask because the subscribe / publish seems like a typical event handler / emitter pattern. I'm curious how this specific pattern helps even more (for it's use cases). |
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@sukima Ok I will extend my comparison of the Mediator pattern to the Observer pattern. But as a note, there is no such thing as a Pub/Sub design pattern, and the Mediator pattern is actually how we implement the most decoupled way of a Pub/Sub mechanism. |
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