go1.18 generic

main.go

package main

import (
	"fmt"
)

type Foo struct {
	a string
	b   string
}

type Bar struct {
	a int
	b int
}

func main() {
	f := []Foo{{"aa", "bb"}, {"aaa", "bbb"}}
	b := []Bar{{1, 2}, {3, 4}}
	Print(f)
	Print(b)
}

func Print[T any](s []T) {
	for _, v := range s {
		fmt.Print(v)
	}
}