feat: added modules

core/utils/array.go

@@ -0,0 +1,46 @@
+package utils
+
+import (
+	"errors"
+	"math/rand"
+	"reflect"
+	"time"
+)
+
+func StringArrayContains(arr []string, str string) bool {
+	for _, s := range arr {
+		if s == str {
+			return true
+		}
+	}
+	return false
+}
+
+func GetArrayItems(array interface{}) (res []interface{}, err error) {
+	switch reflect.TypeOf(array).Kind() {
+	case reflect.Slice, reflect.Array:
+		s := reflect.ValueOf(array)
+		for i := 0; i < s.Len(); i++ {
+			obj, ok := s.Index(i).Interface().(interface{})
+			if !ok {
+				return nil, errors.New("invalid type")
+			}
+			res = append(res, obj)
+		}
+	default:
+		return nil, errors.New("invalid type")
+	}
+	return res, nil
+}
+
+func ShuffleArray(slice []interface{}) (err error) {
+	r := rand.New(rand.NewSource(time.Now().Unix()))
+	for len(slice) > 0 {
+		n := len(slice)
+		randIndex := r.Intn(n)
+		slice[n-1], slice[randIndex] = slice[randIndex], slice[n-1]
+		slice = slice[:n-1]
+	}
+
+	return nil
+}