From 3723228c3de7e81bf492eb29bde8dbebc847060d Mon Sep 17 00:00:00 2001
From: fadrian06 <franyeradriansanchez@gmail.com>
Date: Sun, 16 Aug 2026 01:49:24 -0400
Subject: [PATCH] simplify EventDispatcher@on

---
 flight/core/EventDispatcher.php | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/flight/core/EventDispatcher.php b/flight/core/EventDispatcher.php
index 1c84d26..a7e2f75 100644
--- a/flight/core/EventDispatcher.php
+++ b/flight/core/EventDispatcher.php
@@ -20,17 +20,9 @@ class EventDispatcher
         return self::$instance;
     }
 
-    /**
-     * Register a callback for an event.
-     *
-     * @param string $event Event name
-     * @param callable $callback Callback function
-     */
     public function on(string $event, callable $callback): void
     {
-        if (isset($this->listeners[$event]) === false) {
-            $this->listeners[$event] = [];
-        }
+        $this->listeners[$event] ??= [];
         $this->listeners[$event][] = $callback;
     }