Code that is modular, flexible, and whose dependencies are well-managed, is said to be highly-cohesive and loosely-coupled. These terms are mostly used in object-oriented environments (more about these in Chapter 8, Object-Oriented System to Track Cryptocurrencies), but apply generally to any system. Highly-cohesive means that things that are supposed to be together, are. Loosely-coupled means that things that are not supposed to be together, are not. The following image shows these characteristics, where each of the circles can be a function or an object in general. These are the basics of dependency management. Many books focused on these topics have been, and continue to be, published. ...
Understanding the fundamentals of high-quality code
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