Explain the concept of "interface satisfaction" in Go.

  • It refers to ensuring all methods in an interface are implemented.
  • It's about making interfaces happy.
  • It means implementing interfaces with structs.
  • It's about using interfaces in unit tests.
In Go, "interface satisfaction" refers to ensuring that all methods defined in an interface are implemented by a struct or a custom type. When a type implements all the methods specified by an interface, it satisfies that interface. This concept is critical for achieving polymorphism in Go, as it allows different types to be used interchangeably when they satisfy the same interface, enabling code reusability and flexibility.
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