reflect.IsZero() Function in Golang with Examples
Last Updated :
03 May, 2020
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:
package main
import (
"fmt"
"reflect"
)
func main() {
s := struct { A int }{0}
field := reflect.ValueOf(s).Field(0)
fmt.Println(field.IsZero())
}
|
Output:
true
Example 2:
package main
import (
"fmt"
"reflect"
)
func main() {
s := struct { A int }{1}
field := reflect.ValueOf(s).Field(0)
fmt.Println(field.IsZero())
}
|
Output:
false
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