From 9e522b033079e47c8c9c26256dc6fa1dbbf20562 Mon Sep 17 00:00:00 2001
From: Cohee <18619528+Cohee1207@users.noreply.github.com>
Date: Wed, 11 Sep 2024 19:22:31 +0300
Subject: [PATCH] #1358 Add findLastIndex polyfill for old Safari

---
 public/index.html           |  2 +-
 public/lib/object-hasown.js |  4 ----
 public/lib/polyfill.js      | 13 +++++++++++++
 3 files changed, 14 insertions(+), 5 deletions(-)
 delete mode 100644 public/lib/object-hasown.js
 create mode 100644 public/lib/polyfill.js

diff --git a/public/index.html b/public/index.html
index 61e4c207b..6f8c87112 100644
--- a/public/index.html
+++ b/public/index.html
@@ -6479,8 +6479,8 @@
     </div>
 
     <!-- Script includes -->
+    <script src="lib/polyfill.js"></script>
     <script src="lib/diff_match_patch.js"></script>
-    <script src="lib/object-hasown.js"></script>
     <script src="lib/jquery-3.5.1.min.js"></script>
     <script src="lib/jquery-ui.min.js"></script>
     <script src="lib/jquery.transit.min.js"></script>
diff --git a/public/lib/object-hasown.js b/public/lib/object-hasown.js
deleted file mode 100644
index 9b7792e88..000000000
--- a/public/lib/object-hasown.js
+++ /dev/null
@@ -1,4 +0,0 @@
-// Polyfill for old Safari versions
-if (!Object.hasOwn) {
-    Object.hasOwn = function (obj, prop) { return obj.hasOwnProperty(prop); }
-}
diff --git a/public/lib/polyfill.js b/public/lib/polyfill.js
new file mode 100644
index 000000000..b46d73906
--- /dev/null
+++ b/public/lib/polyfill.js
@@ -0,0 +1,13 @@
+// Polyfills for old Safari versions
+if (!Object.hasOwn) {
+    Object.hasOwn = function (obj, prop) { return obj.hasOwnProperty(prop); }
+}
+
+if (!Array.prototype.findLastIndex) {
+    Array.prototype.findLastIndex = function (callback, thisArg) {
+        for (let i = this.length - 1; i >= 0; i--) {
+            if (callback.call(thisArg, this[i], i, this)) return i;
+        }
+        return -1;
+    };
+}