Небольшие улучшения

Promo · May 3, 2015 · 996c20b · 996c20b
1 parent a02a9ab
commit 996c20b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/lib/wheel-indicator.js b/lib/wheel-indicator.js
@@ -21,6 +21,8 @@ var WheelIndicator = (function() {
 
         on: function(cb){
             this.callback = cb || function(){};
+
+            return this;
         }
     };
 
@@ -99,8 +101,7 @@ var WheelIndicator = (function() {
     function addEvent(elem, type, handler){
         if(window.addEventListener) {
             elem.addEventListener(type, handler, false);
-        }
-        if(window.attachEvent) {
+        } else if (window.attachEvent) {
             elem.attachEvent('on' + type, handler);
         }
     }