What is the difference between a value receiver and a pointer receiver when implementing an interface in Go?
- Value receiver methods operate on a copy of the struct.
- Pointer receiver methods operate on the original struct.
- Value receiver methods cannot implement interfaces.
- Pointer receiver methods are slower than value receiver methods.
The main difference between a value receiver and a pointer receiver when implementing an interface in Go is how they operate on the underlying struct. Value receiver methods work on a copy of the struct, so any modifications made inside the method won't affect the original struct. In contrast, pointer receiver methods operate directly on the original struct, allowing them to modify the struct's state. This distinction is crucial when designing interfaces and choosing the receiver type, as it affects the behavior of methods that implement those interfaces.
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