Update dropdown.js

js/src/dropdown.js

@@ -162,11 +162,11 @@ const Dropdown = (($) => {
         if (this._config.reference === 'parent') {
           referenceElement = parent
         } else if (Util.isElement(this._config.reference)) {
-          referenceElement = this._config.reference;
+          referenceElement = this._config.reference
 
           //check if it's jQuery element
           if (typeof this._config.reference.jquery !== 'undefined') {
-            referenceElement = this._config.reference[0];
+            referenceElement = this._config.reference[0]
           }
         }