fixing tests

types/jquery/index.d.ts

@@ -4553,7 +4553,17 @@ interface JQuery<TElement extends Node = HTMLElement> extends Iterable<TElement>
      * @since 1.7
      */
     on(events: string,
-       handler: JQuery.EventHandler<TElement> | JQuery.EventHandlerBase<any, JQuery.Event<TElement>> | ((event: JQueryEventObject) => void) | false): this;
+       handler: JQuery.EventHandler<TElement> | JQuery.EventHandlerBase<any, JQuery.Event<TElement>> | false): this;
+    /**
+     * Attach an event handler function for one or more events to the selected elements.
+     *
+     * @param events One or more space-separated event types and optional namespaces, such as "click" or "keydown.myPlugin".
+     * @param handler A function to execute when the event is triggered. 
+     * @see {@link https://api.jquery.com/on/}
+     * @since 1.7
+     */
+    on(events: string,
+        handler: ((event: JQueryEventObject) => void)): this;       
     /**
      * Attach an event handler function for one or more events to the selected elements.
      *

types/jquery/jquery-tests.ts

@@ -3709,6 +3709,30 @@ function JQuery() {
                 event;
             });
 
+            // $ExpectType JQuery<HTMLElement>
+            $('table').on('myEvent', function(event: JQueryInputEventObject) {
+                // $ExpectType HTMLElement
+                this;
+                // $ExpectType JQueryInputEventObject
+                event;
+            });
+
+            // $ExpectType JQuery<HTMLElement>
+            $('table').on('myEvent', function(event: JQueryMouseEventObject) {
+                // $ExpectType HTMLElement
+                this;
+                // $ExpectType JQueryMouseEventObject
+                event;
+            });
+
+            // $ExpectType JQuery<HTMLElement>
+            $('table').on('myEvent', function(event: JQueryKeyEventObject) {
+                // $ExpectType HTMLElement
+                this;
+                // $ExpectType JQueryKeyEventObject
+                event;
+            });
+
             // $ExpectType JQuery<HTMLElement>
             $('table').on('myEvent', function(this: I1, event) {
                 // $ExpectType I1