first commit

server/utils/array/array.go

@@ -0,0 +1,19 @@
+package array
+
+import (
+	"github.com/spf13/cast"
+	"strings"
+)
+
+func Join[T any](arg []T, str string) string {
+	var ret strings.Builder
+	for i, t := range arg {
+		if i == 0 {
+			ret.WriteString(cast.ToString(t))
+		} else {
+			ret.WriteString(str)
+			ret.WriteString(cast.ToString(t))
+		}
+	}
+	return ret.String()
+}