From 145826764a76717f63d35e393238b56304575672 Mon Sep 17 00:00:00 2001
From: lukasz <lukasz.usarz@gmail.com>
Date: Tue, 16 Oct 2018 08:34:21 +0200
Subject: [PATCH] refactor(lib): small update in lib/emitter_wrapper

---
 lib/emitter_wrapper.js | 7 +------
 1 file changed, 1 insertion(+), 6 deletions(-)

diff --git a/lib/emitter_wrapper.js b/lib/emitter_wrapper.js
index 2ed593bf3..46706af26 100644
--- a/lib/emitter_wrapper.js
+++ b/lib/emitter_wrapper.js
@@ -8,13 +8,8 @@ class EmitterWrapper {
 
   addListener (event, listener) {
     this.emitter.addListener(event, listener)
-
-    if (!this.listeners.hasOwnProperty(event)) {
-      this.listeners[event] = []
-    }
-
+    this.listeners[event] = this.listeners[event] || []
     this.listeners[event].push(listener)
-
     return this
   }