From 3dbcf4f1caf5e15e804a9dc897d0c59be84336fa Mon Sep 17 00:00:00 2001
From: Tommy Nguyen <4123478+tido64@users.noreply.github.com>
Date: Fri, 31 Jul 2026 11:31:25 +0200
Subject: [PATCH] refactor: use built-in `Error.isError`

---
 packages/app/scripts/testing/test-matrix.mts      | 2 +-
 packages/app/test/windows/copyAndReplace.test.mts | 4 ++--
 packages/app/tsconfig.json                        | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/packages/app/scripts/testing/test-matrix.mts b/packages/app/scripts/testing/test-matrix.mts
index 5741294f6..c9ac58990 100644
--- a/packages/app/scripts/testing/test-matrix.mts
+++ b/packages/app/scripts/testing/test-matrix.mts
@@ -404,7 +404,7 @@ if (platforms.length === 0) {
         process.exitCode = e;
       } else {
         process.exitCode = 1;
-        showBanner(`❌ ${(e instanceof Error && e.stack) || e}`);
+        showBanner(`❌ ${(Error.isError(e) && e.stack) || e}`);
       }
     });
 }
diff --git a/packages/app/test/windows/copyAndReplace.test.mts b/packages/app/test/windows/copyAndReplace.test.mts
index 3b5aa1eb6..9253b52b3 100644
--- a/packages/app/test/windows/copyAndReplace.test.mts
+++ b/packages/app/test/windows/copyAndReplace.test.mts
@@ -48,14 +48,14 @@ describe("copyAndReplace()", () => {
 
   it("throws on error", async () => {
     await rejects(copyAndReplace("ReactTestApp.png", "", {}), (err) => {
-      if (!(err instanceof Error)) {
+      if (!Error.isError(err)) {
         fail("Expected an Error");
       }
       match(err.message, /ENOENT/);
       return true;
     });
     await rejects(copyAndReplace("ReactTestApp.sln", "", {}), (err) => {
-      if (!(err instanceof Error)) {
+      if (!Error.isError(err)) {
         fail("Expected an Error");
       }
       match(err.message, /ENOENT/);
diff --git a/packages/app/tsconfig.json b/packages/app/tsconfig.json
index a91bf59d9..b0f657eba 100644
--- a/packages/app/tsconfig.json
+++ b/packages/app/tsconfig.json
@@ -4,7 +4,7 @@
     "target": "esnext",
     "allowImportingTsExtensions": true,
     "noEmit": true,
-    "lib": ["ES2022", "DOM"]
+    "lib": ["esnext", "dom"]
   },
   "include": [
     "**/*.mjs",