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Inheritance in Go: Why It's Absent and the Alternative
Type inheritance, a fundamental concept in object-oriented programming, allows subclasses to inherit the definitions of their parent classes. However, Go language designers intentionally omitted this feature.
Rationale for Excluding Type Inheritance
Go language creators explained their decision in the FAQ: They believe that excessive emphasis on type relationships in traditional object-oriented languages leads to unnecessary complexity. Instead, Go follows a different approach.
Interfaces: The Go Alternative
Rather than requiring explicit inheritance declarations, Go allows types to satisfy interfaces automatically if they define a subset of the interface's methods. This approach provides numerous benefits:
Additionally, Go encourages the principle of composition over inheritance. By composing objects from smaller, reusable components, developers can achieve similar functionality to inheritance without its drawbacks.
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