Function Alias in Go

In Go, an alias is a way to give an existing type a new name. This makes the code more readable and understandable. For example, you can create an alias for the type int and call it number:

type number int

Now you can use number instead of int in your code:

var x number = 5
fmt.Println(x) // prints "5"

You can also create an alias for a user-defined type, like a struct:

type person struct {
    name string
    age int
}
type employee person
func main() {

    emp := employee{name: "John", age: 30}

    fmt.Println(emp) // prints "{John 30}"

}

In this example, we create an alias for the person struct called employee. We can use employee just like we use person, but it's a different type. When we create emp as an employee, we can still access its name and age fields.