When and How to Use Golang Anonymous Struct?

What is an Anonymous Struct in Golang?

Golang Anonymous Struct is a struct without a defined name. It is useful for temporary data structures that don’t need to be reused. You can define and use an anonymous struct inline without declaring a separate type.

How to Declare an Anonymous Struct in Golang?

You can declare an anonymous struct like this:

    
        package main


import "fmt"


func main() {

    person := struct {

        name string

        age  int

    }

{

        name: "John",

        age:  30,

    }


    fmt.Println("Name:", person.name)

    fmt.Println("Age:", person.age)

}




        
        
    

This creates a struct on the fly without defining a separate type.

When Should You Use Anonymous Structs in Go?

Use them when:

• You need a temporary struct without reuse.
• Struct definitions are needed inside functions.
• You want to reduce unnecessary type declarations.

Can an Anonymous Struct Have Methods?

No, since Golang Anonymous Struct doesn’t have a named type, you cannot define methods for them directly. If methods are required, a named struct is preferred.