Golang Reflection

GetRuntimeType.go

// a trivial extension on SO6996704
// `fmt.Printf("%T", x)` returns same as `reflect.TypeOf(x).Name()`
// without considering other aspects like impairments on execution time.

package main

import (
	"fmt"
	"reflect"
)


func PrintType(x interface{}) {
	fmt.Printf("%v: %%T=%T, TypeOf.Kind=%s\n", x, x, reflect.TypeOf(x).Kind())
}

func PrintName(x interface{}) {
	fmt.Printf("%v: %%T=%T, TypeOf.Name=%s\n", x, x, reflect.TypeOf(x).Name())
}

type Person struct {
	name string
	age int
}	
	
func main() {
	x := 1
	y := "hahaha"
	z := Person{"John", 33}
	
	PrintType(x)	// 1: %T=int, TypeOf.Kind=int
	PrintName(x)	// 1: %T=int, TypeOf.Name=int
	PrintType(y)	// hahaha: %T=string, TypeOf.Kind=string
	PrintName(y)	// hahaha: %T=string, TypeOf.Name=string
	PrintType(z)  	// {John 33}: %T=main.Person, TypeOf.Kind=struct
	PrintName(z)	// {John 33}: %T=main.Person, TypeOf.Name=Person
}