containsAny in Golang

containsAny.go

package main

import (
	"fmt"
	"reflect"
)

func containsAny(data interface{}, element ...interface{}) bool {
	rVal := reflect.ValueOf(data)
	switch rVal.Kind() {
		case reflect.Array, reflect.Slice:
			for i := 0; i < rVal.Len(); i++ {
				ele := rVal.Index(i)
				for _, e := range element {
					if reflect.DeepEqual(ele.Interface(), e) {
						return true
					}
				}
			}
		case reflect.String:
			str := rVal.Interface().(string)
			for _, e := range element {
				if subStr, ok := e.(string); ok {
					if strings.Contains(str, subStr) {
						return true
					}
				}
			}
		case reflect.Map:
			keys := map[interface{}]bool{}
			for _, key := range rVal.MapKeys() {
				keys[key.Interface()] = true
			}
			if len(keys) != 0 {
				for _, e := range element {
					if keys[e] {
						return true
					}
				}
			}
		}
	return false
}

func main() {
	data := []interface{}{1, 2, "a", 'b'}
	fmt.Println(containsAny(data, 1, "c"))
}