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Curriculum Types & methods Methods exercise 5 · fill-word

Methods

Inside a method body, the receiver acts as the conventional self-reference — Go has no this. Type the field-access expression that reads the receiver's n field.

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Methods are functions with a receiver — a special argument declared before the function name: func (r Receiver) Foo() { ... }. Two flavours: value receivers (operate on a copy) and pointer receivers (operate on the original). The rule of thumb: use a pointer receiver if you'd modify the receiver, or if the receiver is large enough that copying is wasteful.