From 6d1c468bac44f67dbf76c871e2ba030ba14d4dd5 Mon Sep 17 00:00:00 2001
From: Patrice Chalin <pchalin@gmail.com>
Date: Mon, 28 Nov 2016 18:00:47 -0800
Subject: [PATCH] examples(toh-6/dart): support case where `_initialHeroes` is
 empty

Fixes https://github.com/angular-examples/toh-6/issues/2
---
 .../docs/_examples/toh-6/dart/lib/in_memory_data_service.dart   | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/public/docs/_examples/toh-6/dart/lib/in_memory_data_service.dart b/public/docs/_examples/toh-6/dart/lib/in_memory_data_service.dart
index 5be0f9e8c4..2472a4f4a5 100644
--- a/public/docs/_examples/toh-6/dart/lib/in_memory_data_service.dart
+++ b/public/docs/_examples/toh-6/dart/lib/in_memory_data_service.dart
@@ -25,7 +25,7 @@ class InMemoryDataService extends MockClient {
   ];
   static final List<Hero> _heroesDb =
       _initialHeroes.map((json) => new Hero.fromJson(json)).toList();
-  static int _nextId = _heroesDb.map((hero) => hero.id).reduce(max) + 1;
+  static int _nextId = _heroesDb.map((hero) => hero.id).fold(0, max) + 1;
 
   static Future<Response> _handler(Request request) async {
     var data;