Example implentation map of interface for Golang

map_of_interface.go

package main

import (
    "fmt"
)

type MyMap map[string]interface{}

func (m MyMap) Set(key string, value interface{}) {
    m[key] = value
}

func (m MyMap) Get(key string) (interface{}, bool) {
    value, ok := m[key]
    return value, ok
}

func (m MyMap) Delete(key string) {
    delete(m, key)
}

func (m MyMap) Print() {
    for key, value := range m {
        fmt.Printf("%s: %v\n", key, value)
    }
}

func main() {
    m := make(MyMap)

    m.Set("name", "John")
    m.Set("age", 30)
    m.Set("isStudent", true)

    value, ok := m.Get("name")
    if ok {
        fmt.Println("Value:", value)
    }

    m.Print()

    m.Delete("age")

    m.Print()
}