Golang Function as Parameter example

go_func_as_parameter.go

package main

import (
	"fmt"
	"strings"
)

type fo func(key string, value string) bool

func Check(key string, data []string, op fo) []string{
		var result []string
		for _, v := range data {
			if op(key, v){
				result = append(result, v)
			}
		}
		return result
}

type Persons []string

func main() {
	persons := Persons{"Andi", "Beni", "Wuri", "Alan", "Ana"}
	res := Check("an", persons, func(k, s string) bool {
		return strings.Contains(strings.ToLower(s), strings.ToLower(k))
	})
	fmt.Println(res)
}