From 05e1878b3d88d6d79946bc16e3a8ff640d15bc5e Mon Sep 17 00:00:00 2001
From: Mustafa Kemal Tuna <12192118+lumosmind@users.noreply.github.com>
Date: Thu, 30 Jul 2020 00:32:44 +0300
Subject: [PATCH] refactoring

more readable and more modern way
---
 1-js/09-classes/07-mixins/article.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/1-js/09-classes/07-mixins/article.md b/1-js/09-classes/07-mixins/article.md
index 60f6f7c4..d43b96c9 100644
--- a/1-js/09-classes/07-mixins/article.md
+++ b/1-js/09-classes/07-mixins/article.md
@@ -154,7 +154,7 @@ let eventMixin = {
    *  this.trigger('select', data1, data2);
    */
   trigger(eventName, ...args) {
-    if (!this._eventHandlers || !this._eventHandlers[eventName]) {
+    if (!this._eventHandlers?.[eventName]) {
       return; // no handlers for that event name
     }