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Everything about Generics in Go
- Generic programming allows writing code in strongly-typed languages with specified types provided later as parameters during instantiation.
- Generics in Go are implemented through type parameters, allowing code to be applied to multiple types without redundancy.
- Before generics, expanding requirements led to repetitive code changes, whereas generics solve this issue by enabling flexibility.
- Basic syntax of generics in Go includes using type parameters in function and type definitions, and constraints like any and comparable.
- The ~ symbol in Go generics represents underlying type constraints, ensuring type compatibility.
- Type constraints like any, comparable, and ordered are used in Go generics for different type operations.
- Generics are recommended for language-defined container types, general-purpose data structures, and generic method implementations.
- Avoid using generics when interface types are sufficient, methods implementations differ, or reflection is needed for type operations.
- A simple guideline to determine when to use generics: if you find repetitive code with only type differences, consider using type parameters.
- Go syntax uses square brackets [] over angle brackets < > for generics to avoid ambiguity in parsing.
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