reflect.Type() Function in Golang with Examples

Go language provides inbuilt support implementation of run-time reflection and allowing a program to manipulate objects with arbitrary types with the help of reflect package. The reflect.Type() Function in Golang is used to get v’s type. To access this function, one needs to imports the reflect package in the program.

Syntax:

func (v Value) Type() Type

Parameters: This function does not accept any parameter.

Return Value: This function returns the v’s type.

Below examples illustrate the use of above method in Golang:

Example 1:

// Golang program to illustrate
// reflect.Type() Function

package main

import (
    "fmt"
    "reflect"
)

// Main function
func main() {

    var val chan int

    // use of Type() method
    value := reflect.MakeChan(reflect.Indirect(reflect.ValueOf(&val)).Type(), 0)

    fmt.Println("Value :", value)
}

Output:

Value : 0xc00010c000

Example 2:

// Golang program to illustrate
// reflect.Type() Function

package main

import (
    "fmt"
    "reflect"
)

// Main function
func main() {

    var str map[int]string

    var strValue reflect.Value = reflect.ValueOf(&str)

    indirectStr := reflect.Indirect(strValue)

    //Use of Type() method

    valueMap := reflect.MakeMap(indirectStr.Type())

    fmt.Printf("ValueMap is [%v] .", valueMap)

}

Output:

ValueMap is [map[]] .