TypeOf in Go

Posted by GoDoc
Public (Editable by Users)

TypeOf returns the reflection Type that represents the dynamic type of i. If i is a nil interface value, TypeOf returns nil.

Go
Edit 
package main

import (
	"fmt"
	"io"
	"os"
	"reflect"
)

func main() {
	// As interface types are only used for static typing, a
	// common idiom to find the reflection Type for an interface
	// type Foo is to use a *Foo value.
	writerType := reflect.TypeOf((*io.Writer)(nil)).Elem()

	fileType := reflect.TypeOf((*os.File)(nil))
	fmt.Println(fileType.Implements(writerType))
}