From f5d641ff2d2ffab4cab56700b9b2332e25030c79 Mon Sep 17 00:00:00 2001
From: Dmitrii Tikhomirov <chani.liet@gmail.com>
Date: Thu, 24 Dec 2020 16:49:39 +0100
Subject: [PATCH] EventDispatcher converted to es6

---
 src/core/EventDispatcher.js | 21 +++++++++------------
 1 file changed, 9 insertions(+), 12 deletions(-)

diff --git a/src/core/EventDispatcher.js b/src/core/EventDispatcher.js
index 77988ca004e74..a509ef0181523 100644
--- a/src/core/EventDispatcher.js
+++ b/src/core/EventDispatcher.js
@@ -2,11 +2,9 @@
  * https://github.com/mrdoob/eventdispatcher.js/
  */
 
-function EventDispatcher() {}
+class EventDispatcher {
 
-Object.assign( EventDispatcher.prototype, {
-
-	addEventListener: function ( type, listener ) {
+	addEventListener( type, listener ) {
 
 		if ( this._listeners === undefined ) this._listeners = {};
 
@@ -24,19 +22,18 @@ Object.assign( EventDispatcher.prototype, {
 
 		}
 
-	},
+	}
 
-	hasEventListener: function ( type, listener ) {
+	hasEventListener( type, listener ) {
 
 		if ( this._listeners === undefined ) return false;
 
 		const listeners = this._listeners;
-
 		return listeners[ type ] !== undefined && listeners[ type ].indexOf( listener ) !== - 1;
 
-	},
+	}
 
-	removeEventListener: function ( type, listener ) {
+	removeEventListener( type, listener ) {
 
 		if ( this._listeners === undefined ) return;
 
@@ -55,9 +52,9 @@ Object.assign( EventDispatcher.prototype, {
 
 		}
 
-	},
+	}
 
-	dispatchEvent: function ( event ) {
+	dispatchEvent( event ) {
 
 		if ( this._listeners === undefined ) return;
 
@@ -81,7 +78,7 @@ Object.assign( EventDispatcher.prototype, {
 
 	}
 
-} );
+}
 
 
 export { EventDispatcher };