melp.nl | A geeks outlet on open source, web development and related stuff

Time 2020-11-20 18:03:31

Web Name: melp.nl | A geeks outlet on open source, web development and related stuff

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Published: July 12, 2017 Given any system, anytime, anywhere, state is a derivation of some sequence of events. Always. It is like that in the real world, as we already know that events can never be exactly reproduced without replaying them in pure isolation from whatever else that might influence it. In practice, we just try to marginalize the outer effects when trying to reproduce something. This is true for all social science as well as quantum physics and everything in between. In other words: what we see, what we observe is a series of facts, strung together by our minds as a series of events. Many philosophers have argued that causation in itself is a product of our mind. Especially Leibniz has some interesting thoughts about this. Suffice to say that a common view on causation is that the series of facts are empirically witnessed, but that any connection between these facts is a mere product of our mind: we construe causality in our minds1.State, on the other hand, is whatever is at a given moment in time. A photograph, for example, is more or less a record of the state all objects were in at that point in time. Or, you could pause a video and observe this state of whatever was filmed. But state is not what s important. Whatever is happening is important. Or, even better: whatever caused things to happen, and what actions people take might cause other things to happen. John picks up an axe. Will he murder again? Rita looks away. Will she love him ever again? Stuff like that.Back to the digital world. We have known for a long time that state is complicated. Because if some object holds state, it means that that object can change and we must be very keen on trusting the object to either be responsible for it s own state by receiving messages or events or being told by other objects that it s state should change. This means that there is always a question of responsibility . This effectuated principles such as Law of Demeter / Principle of Least Knowledge, Separation of Concerns and the Single Responsibility Principle. In object oriented design, we tried to emphasize this aspect with stuff like Design by Contract and Encapsulation.Lately we found out that it s good to do Composition over inheritance, moving from complex software architecture to be more Pure , which means: less Stateful . In other words: we decided that Declarative is the new black. Yeah. That last one is mine. From a few years back. Ever since that post, people start picking up on it everywhere. Well, no not really. Well, they do, but it had nothing to do with my influence on the world s events. Or . did it? Let s be reasonable. It probably didn t

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