In Go, you can define methods for custom types, that is, method receivers. Simply define the receiver type, method name, and parameters to add behavior for a specific type.
#How to define methods for custom types in Go?
In Go, you can add methods to custom types just like you add methods to built-in types. This is called a method receiver. By defining a receiver, you can add behavior specific to a custom type.
Define a receiver method
To define a receiver method, use the following syntax:
func ( receiverType ) methodName( arguments ) returnType
Where:
receiverType
is the custom type that defines the method. methodName
is the name of the method. arguments
are the parameters of the method (optional). returnType
is the return value type of the method (optional). Practical case
The following example shows how to define a FullName
method for the Person
custom type:
type Person struct { firstName string lastName string } // 定义接收器方法 func (p Person) FullName() string { return fmt.Sprintf("%s %s", p.firstName, p.lastName) } func main() { person := Person{firstName: "John", lastName: "Doe"} fmt.Println(person.FullName()) // 输出:"John Doe" }
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