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reflect.CanInterface() Function in Golang with Examples

Last Updated : 23 Oct, 2024
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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.CanInterface() Function in Golang is used to check whether Interface can be used without panicking. To access this function, one needs to imports the reflect package in the program.

Syntax:
func (v Value) CanInterface() bool
Parameters: This function does not accept any parameters. Return Value: This function returns the boolean value.

Below examples illustrate the use of the above method in Golang:

Example 1:

C 
// Golang program to illustrate
// reflect.CanInterface() Function
  
package main
  
import (
    "fmt"
    "reflect"
)
  
// Main function  
func main() {
    
    num := 6
    meta := reflect.ValueOf(num)
    
    // use of CanInterface() method
    fmt.Println("canInterface:", meta.CanInterface() == true)
}

Output:

canInterface: true

Example 2:

C 
// Golang program to illustrate
// reflect.CanInterface() Function
  
package main
  
import (
    "fmt"
    "reflect"
)
  
// Main function  
func main() {
    
    string := "ABC"
    meta := reflect.ValueOf(&string)
    
    // use of CanInterface() method
    fmt.Println("canInterface:", meta.CanInterface() == false)
}

Output:

canInterface: false

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reflect.CanInterface() Function in Golang with Examples

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