reflect.IsZero() 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.IsZero() Function in Golang is used to check whether v is the zero value for its type. To access this function, one needs to imports the reflect package in the program.

Syntax:

func (v Value) IsZero() bool

Parameters: This function does not accept any parameter.

Return Value: This function returns whether v is the zero value for its type or not.

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



Example 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Golang program to illustrate
// reflect.IsZero() Function 
    
package main
    
import (
    "fmt"
    "reflect"
)
   
// Main function 
func main() {
  
    s := struct{ A int }{0}
    field := reflect.ValueOf(s).Field(0)
      
    // Use of IsZero() method
    fmt.Println(field.IsZero())
}

chevron_right


Output:

true

Example 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

// Golang program to illustrate
// reflect.IsZero() Function 
    
package main
    
import (
    "fmt"
    "reflect"
)
   
// Main function 
func main() {
  
    s := struct{ A int }{1}
    field := reflect.ValueOf(s).Field(0)
      
    // Use of IsZero() method
    fmt.Println(field.IsZero())
}

chevron_right


Output:

false



My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :

Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.