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Kas praeguses kontekstis tuleks kasutada viitavat Receiver tüüpi objekti?
sobes.tech AI
Vastus AI-lt
In Go, a pointer to an object of type Receiver is usually not needed if the method does not modify the object's state or if the object is small.
Use a pointer to the Receiver when:
- You need to modify the object's state inside the method.
- The object is large and you want to avoid copying when calling the method.
If the method only reads data and the object is small, you can use a value (without a pointer).
Example:
func (r *Receiver) UpdateValue(val int) {
r.value = val // changing state, pointer needed
}
func (r Receiver) PrintValue() {
fmt.Println(r.value) // read-only, can be without pointer
}
Therefore, the decision depends on whether you need to modify the object and how large it is.