When is duplicated code better than shared abstraction?

The article "When to Repeat Yourself" by Franco Fernando delves into a crucial aspect of a programmer's life—when it is worthwhile to repeat a section of code. Fernando examines various scenarios where repetition can enhance code quality and simplify future maintenance. In the realm of good programming practices, sometimes certain code segments can be more efficient and less error-prone when clearly replicated, as this aids in comprehending their functionality better. Conversely, repetition can lead to difficulties in code management, which is why the DRY (Don't Repeat Yourself) principle often comes into play. Fernando provides concrete examples to illustrate these guidelines and encourages programmers to reflect on how their choices impact the long-term development of their projects. Ultimately, the author suggests that programmers apply common sense, analyzing both short-term and long-term aspects of their project decisions to balance the benefits and risks associated with code repetition.