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Never expose boolean

Imagine a startup creating a management system for a company that operates in a single country. Sooner or later, there comes a feature to distinguish contractors between home country and foreign ones. You may imagine a developer introducing a small private class with a boolean property IsForeign, so the class that represents a contractor looks […]

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Are you sure you write object-oriented code?

Most of us take for granted that object-oriented paradigm is not only mature, but the “good” way of developing applications. Despite the fame of functional programming which, as time goes by, becomes a real power, most of software is created in the object-oriented way. Or at least we believe so. But following the principles is […]