reflect.StructOf() Function in Golang with Examples
Last Updated :
28 Apr, 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.StructOf() Function in Golang is used to get the struct type containing fields. To access this function, one needs to imports the reflect package in the program.
Syntax:
func StructOf(fields []StructField) Type
Parameters: This function takes only one parameters of StructFields( fields ).
Return Value: This function returns the struct type containing fields.
Below examples illustrate the use of above method in Golang:
Example 1:
package main
import (
"fmt"
"reflect"
)
func main() {
typ := reflect.StructOf([]reflect.StructField{
{
Name: "Height" ,
Type: reflect.TypeOf(float64(0)),
},
{
Name: "Name" ,
Type: reflect.TypeOf( "abc" ),
},
})
fmt.Println(typ)
}
|
Output:
struct { Height float64; Name string }
Example 2:
package main
import (
"fmt"
"reflect"
)
func main() {
tt:= reflect.StructOf([]reflect.StructField{
{
Name: "Height" ,
Type: reflect.TypeOf(0.0),
Tag: `json: "height" `,
},
{
Name: "Name" ,
Type: reflect.TypeOf( "abc" ),
Tag: `json: "name" `,
},
})
fmt.Println(tt.NumField())
fmt.Println(tt.Field(0))
fmt.Println(tt.Field(1))
}
|
Output:
2
{Height float64 json:"height" 0 [0] false}
{Name string json:"name" 8 [1] false}
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