How to convert []interface to []struct

Question

For example, this code:

type person struct { //struct
  id   int
  name string
}

func example()  {
  var (
      p []person
      pi []interface{}
  )
  pi = append(pi, person{
      id:   1,
      name: "Mike",
  })
}

How to convert pi to p?

for k, v := range pi { p[k] = v //Cannot use 'v' (type interface{}) as type person in assignment } — Don Quixote, Jan 29 '21 at 04:29

score 1 · Accepted Answer · answered Jan 29 '21 at 04:39

try this one:

package main

import (
    "fmt"
)

type person struct { //struct
    id   int
    name string
}

func main() {
    var (
        p  []person
        pi []interface{}
    )
    pi = append(pi, person{
        id:   1,
        name: "Mike",
    })
    for _, tmp := range pi {
         // fmt.Println(tmp,k)
         p = append(p, tmp.(person))
         fmt.Println( p)
    }

}

How to convert []interface to []struct

1 Answers1