Golang allows creating two or more methods with the same name in the same package, but the receivers of these methods must be of different types. This feature is not available in Go functions, which means you are not allowed to create methods with the same name in the same package, if you try to do so, the compiler will throw an error.
Syntax:
func(reciver_name_1 Type) method_name(parameter_list)(return_type){
// Code
}
func(reciver_name_2 Type) method_name(parameter_list)(return_type){
// Code
}Let's look at the following example to better understand methods with the same name in Golang:
Example 1:
// Chương trình Go minh họa cách
// tạo các phương thức cùng tên
package main
import "fmt"
// Tạo các cấu trúc
type student struct {
name string
branch string
}
type teacher struct {
language string
marks int
}
// Các phương thức cùng tên nhưng với
// kiểu receiver khác nhau
func (s student) show() {
fmt.Println("Name of the Student:", s.name)
fmt.Println("Branch: ", s.branch)
}
func (t teacher) show() {
fmt.Println("Language:", t.language)
fmt.Println("Student Marks: ", t.marks)
}
// Hàm chính
func main() {
// Khởi tạo các giá trị
// of the structures
val1 := student{"Rohit", "EEE"}
val2 := teacher{"Java", 50}
// Gọi các phương thức
val1.show()
val2.show()
}
Result:
Name of the Student: Rohit
Branch: EEE
Language: Java
Student Marks: 50Explanation: In the above example, we have two methods with the same name i.e. show() but with different types. Here, the first show() method contains s of type student and the second show() method contains t of type teacher . And in the main() function, we call both the methods with the help of their respective structure variables. If you try to create these show() methods with the same type, then the compiler will throw an error.
Example 2:
// Chương trình Go minh họa cách
// tạo các phương thức cùng tên
// với receiver không phải struct
package main
import "fmt"
type value_1 string
type value_2 int
// Tạo hàm cùng tên với
// các kiểu receiver không phải struct khác nhau
func (a value_1) display() value_1 {
return a + "forGeeks"
}
func (p value_2) display() value_2 {
return p + 298
}
// Hàm chính
func main() {
// Khởi tạo giá trị này
res1 := value_1("Geeks")
res2 := value_2(234)
// Hiện kết quả
fmt.Println("Result 1: ", res1.display())
fmt.Println("Result 2: ", res2.display())
}
Result:
Result 1: GeeksforGeeks
Result 2: 532In Golang, named return parameters are often referred to as named parameters. Golang allows naming the return parameters or results of functions in the function signature or definition.
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