From df797c90c74245f80a55ecfe0d2e9e0be9b83b62 Mon Sep 17 00:00:00 2001
From: Balint Rozgonyi <rozgonyibalint@gmail.com>
Date: Tue, 11 Aug 2026 08:11:54 +0200
Subject: [PATCH] Update SDK constraint and improve type checking for JSString

---
 lib/src/util/js_interop_type_adapter.dart | 2 +-
 pubspec.yaml                              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/lib/src/util/js_interop_type_adapter.dart b/lib/src/util/js_interop_type_adapter.dart
index a6e77fa..6baaed8 100644
--- a/lib/src/util/js_interop_type_adapter.dart
+++ b/lib/src/util/js_interop_type_adapter.dart
@@ -4,5 +4,5 @@
 import 'dart:js_interop';
 
 bool isString(Object obj) {
-  return obj is JSString;
+  return obj.isA<JSString>();
 }
diff --git a/pubspec.yaml b/pubspec.yaml
index ad19bc7..02626cb 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -6,7 +6,7 @@ repository: https://github.com/rikulo/socket_io_common
 issue_tracker: https://github.com/rikulo/socket_io_common/issues
 
 environment:
-  sdk: '>=3.0.0 <4.0.0'
+  sdk: '>=3.12.0 <4.0.0'
 
 dependencies:
   logging: '^1.2.0'