From e435e09b6df17b8fa348f59c14715de5771f2bc9 Mon Sep 17 00:00:00 2001
From: ThaUnknown <6506529+ThaUnknown@users.noreply.github.com>
Date: Sat, 19 Jul 2025 19:32:57 +0200
Subject: [PATCH] fix: polyfill grupby

---
 package.json          |  2 +-
 src/routes/+layout.ts | 17 ++++++++++++++---
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/package.json b/package.json
index be349d9..9265652 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
 	"name": "ui",
-	"version": "6.4.63",
+	"version": "6.4.64",
 	"license": "BUSL-1.1",
 	"private": true,
 	"packageManager": "pnpm@9.15.5",
diff --git a/src/routes/+layout.ts b/src/routes/+layout.ts
index b351068..f385b2d 100644
--- a/src/routes/+layout.ts
+++ b/src/routes/+layout.ts
@@ -6,12 +6,23 @@ export const trailingSlash = 'always'
 
 if (typeof Promise.withResolvers === 'undefined') {
   Promise.withResolvers = function <T> () {
-    let resolve: (value: T | PromiseLike<T>) => void
-    let reject: (reason?: unknown) => void
+    let resolve!: (value: T | PromiseLike<T>) => void
+    let reject!: (reason?: unknown) => void
     const promise = new Promise<T>((_resolve, _reject) => {
       resolve = _resolve
       reject = _reject
     })
-    return { promise, resolve: resolve!, reject: reject! }
+    return { promise, resolve, reject }
+  }
+}
+
+if (typeof Object.groupBy === 'undefined') {
+  Object.groupBy = <T, K extends string | number | symbol>(arr: T[], callback: (item: T, index: number) => K) => {
+    return [...arr].reduce<Partial<Record<K, T[]>>>((acc: Partial<Record<K, T[]>>, currentValue, index) => {
+      const key = callback(currentValue, index)
+      acc[key] ??= []
+      acc[key]!.push(currentValue)
+      return acc
+    }, {})
   }
 }