From 8077beab6b75fe0be21943bd8b106925f967e76c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Micha=C5=82=20Struck?=
 <98230431+michalstruck@users.noreply.github.com>
Date: Thu, 19 Jan 2023 14:22:23 +0100
Subject: [PATCH] fix: simpler solution + alternative

---
 02-assignability-and-conditional-types/solution.ts | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/02-assignability-and-conditional-types/solution.ts b/02-assignability-and-conditional-types/solution.ts
index 6e82501..0f466db 100644
--- a/02-assignability-and-conditional-types/solution.ts
+++ b/02-assignability-and-conditional-types/solution.ts
@@ -128,12 +128,14 @@ namespace bonus {
     type test4 = Get<{ name: string }, "age">;
   }
 
-  namespace seven {
-    type XOR<bool1, bool2> = [bool1, bool2] extends [true, true]
-      ? false
-      : [bool1, bool2] extends [false, false]
-      ? false
-      : true;
+namespace seven {
+    type XOR<bool1, bool2> = bool1 extends bool2 ? false : true;
+    // alternative
+    // type XOR2<bool1, bool2> = [bool1, bool2] extends
+    //   | [true, true]
+    //   | [false, false]
+    //   ? false
+    //   : true;
 
     type res1 = XOR<true, true>;
     type t1 = Expect<Equal<res1, false>>;