diff --git a/jquery/jquery-tests.ts b/jquery/jquery-tests.ts
index 57ba838ee..7177b1333 100644
--- a/jquery/jquery-tests.ts
+++ b/jquery/jquery-tests.ts
@@ -568,7 +568,7 @@ function test_bind() {
     $("form").bind("submit", function (event) {
         event.stopPropagation();
     });
-    $("p").bind("myCustomEvent", function (e, myName, myValue) {
+    $("p").bind("myCustomEvent", function (e, myName?, myValue?) {
         $(this).text(myName + ", hi there!");
         $("span").stop().css("opacity", 1)
         .text("myName = " + myName)
diff --git a/jquery/jquery.d.ts b/jquery/jquery.d.ts
index 235022bf9..83f2288d0 100644
--- a/jquery/jquery.d.ts
+++ b/jquery/jquery.d.ts
@@ -2028,14 +2028,59 @@ interface JQuery {
      */
     toggle(showOrHide: boolean): JQuery;
 
-    // Events
+    /**
+     * Attach a handler to an event for the elements.
+     * 
+     * @param eventType A string containing one or more DOM event types, such as "click" or "submit," or custom event names.
+     * @param eventData An object containing data that will be passed to the event handler.
+     * @param handler A function to execute each time the event is triggered.
+     */
     bind(eventType: string, eventData: any, handler: (eventObject: JQueryEventObject) => any): JQuery;
+    /**
+     * Attach a handler to an event for the elements.
+     * 
+     * @param eventType A string containing one or more DOM event types, such as "click" or "submit," or custom event names.
+     * @param handler A function to execute each time the event is triggered.
+     */
     bind(eventType: string, handler: (eventObject: JQueryEventObject) => any): JQuery;
+    /**
+     * Attach a handler to an event for the elements.
+     * 
+     * @param eventType A string containing one or more DOM event types, such as "click" or "submit," or custom event names.
+     * @param eventData An object containing data that will be passed to the event handler.
+     * @param preventBubble Setting the third argument to false will attach a function that prevents the default action from occurring and stops the event from bubbling. The default is true.
+     */
     bind(eventType: string, eventData: any, preventBubble: boolean): JQuery;
+    /**
+     * Attach a handler to an event for the elements.
+     * 
+     * @param eventType A string containing one or more DOM event types, such as "click" or "submit," or custom event names.
+     * @param preventBubble Setting the third argument to false will attach a function that prevents the default action from occurring and stops the event from bubbling. The default is true.
+     */
     bind(eventType: string, preventBubble: boolean): JQuery;
-    bind(...events: any[]): JQuery;
+    /**
+     * Attach a handler to an event for the elements.
+     * 
+     * @param events An object containing one or more DOM event types and functions to execute for them.
+     */
+    bind(events: any): JQuery;
 
+    /**
+     * Trigger the "blur" event on an element
+     */
+    blur(): JQuery;
+    /**
+     * Bind an event handler to the "blur" JavaScript event
+     *
+     * @param handler A function to execute each time the event is triggered.
+     */
     blur(handler: (eventObject: JQueryEventObject) => any): JQuery;
+    /**
+     * Bind an event handler to the "blur" JavaScript event
+     *
+     * @param eventData An object containing data that will be passed to the event handler.
+     * @param handler A function to execute each time the event is triggered.
+     */
     blur(eventData?: any, handler?: (eventObject: JQueryEventObject) => any): JQuery;
 
     /**
diff --git a/jquerymobile/jquerymobile-tests.ts b/jquerymobile/jquerymobile-tests.ts
index 19231849f..b28d308a0 100644
--- a/jquerymobile/jquerymobile-tests.ts
+++ b/jquerymobile/jquerymobile-tests.ts
@@ -71,7 +71,7 @@ function test_pagesDialogs() {
         }
     });
 
-    $(document).bind("pagebeforechange", function (e, data) {
+    $(document).bind("pagebeforechange", function (e, data?) {
         if (typeof data.toPage === "string") {
             var u = $.mobile.path.parseUrl(data.toPage),
                 re = /^#category-item/;
diff --git a/sammyjs/sammyjs-tests.ts b/sammyjs/sammyjs-tests.ts
index da0da616e..1aa151d6e 100644
--- a/sammyjs/sammyjs-tests.ts
+++ b/sammyjs/sammyjs-tests.ts
@@ -422,7 +422,7 @@ function test_misc() {
     });
 
     store = new Sammy.Store({ name: 'kvo' });
-    $('body').bind('set-kvo-foo', function (e, data) {
+    $('body').bind('set-kvo-foo', function (e, data?) {
         Sammy.log(data.key + ' changed to ' + data.value);
     });
     store.set('foo', 'bar');