event-bubbling

问题 What is the difference between event.bubbles to false for any event, and setting event.stopPropagation() or stopImmediatePropagation() while handling event? I'm using Flex4 with AS3. 回答1: Setting bubbles to false means the event does not bubble up the display list at all. stopPropagation() and stopImmediatePropagation() make the current event listener the last to process an event. The difference between stopPropagation() and stopImmediatePropagation() is that stopImmediatePropagation() will

问题 I want to understand how exactly to interpret bubbling. Does it mean going up the HTML code hierarchy or something else? Secondly, I was going through an example and I could not understand the last part where it says The P-based click handler listens for the click event and then prevents it from being propagated (bubbling up) What does this mean? 回答1: return false; will prevent "bubbling". It's used to stop default actions like checking a checkbox, opening a select, a click, etc. To stop

问题 I would like to know whether this is the correct way of hiding visible elements when clicked anywhere on the page. $(document).click(function (event) { $('#myDIV:visible').hide(); }); The element (div, span, etc.) shouldn't disappear when a click event occurs within the boundaries of the element. 回答1: If I understand, you want to hide a div when you click anywhere but the div, and if you do click while over the div, then it should NOT close. You can do that with this code: $(document).click

问题 I found out that certain events on the video/audio tag don't bubble (loadedmetadata, progress, etc). Is this against the standard or is it common for other events? How am I supposed to know what events are supposed to bubble or not bubble? 回答1: You can test it... readonly attribute boolean bubbles; check this property of the event. bubbles of type boolean, readonly Used to indicate whether or not an event is a bubbling event. If the event can bubble the value is true, else the value is false.

问题 (disclaimer: this question is much simpler than the title suggests!) I have a re-occuring problem in my program architecture with listening to changes against a model. I have set-up some collections (much like in Backbone.js ) which are just lightweight classes built around an array. The collection is a collection of models. When the user makes changes to a model I keep ending up with dreadful nested events. This is a typical, simple, scenario that I'm trying to avoid: $("#user-details").on(

问题 Greetings All, I have two ascx's loaded in the page-init event of an aspx page. Control 1 has a radio button list that I want a dropdown list on control 2 to respond to it's selectedIndex change. So far I call RaiseBubbleEvent on the SelectedIndexChange handler and I pass on a control reference and commandArgs. Then in the aspx I override OnBubbleEvent and I am able to receive the control reference and commandArgs. My question is how do I pass this information on to Control 2. The page is not

问题 I hope someone have a hint/solution to solve this problem in a better and more performant way. I'm writting an Windows UWP app with contains a ScrollViewer with a grid. In this grid I have two StackPanels embedded in a ScrollViewer. Each StackPanel has a list of images in a vertical orientation. The StackPanel is as height as all images are together so there is no vertical scrollbar as it should be. On the other hand the images are wider then the StackPanel and the horizontal scrollbar is

问题 I have a html structure like : <div onmouseover="enable_dropdown(1);" onmouseout="disable_dropdown(1);"> My Groups <a href="#">(view all)</a> <ul> <li><strong>Group Name 1</strong></li> <li><strong>Longer Group Name 2</strong></li> <li><strong>Longer Group Name 3</strong></li> </ul> <hr /> Featured Groups <a href="#">(view all)</a> <ul> <li><strong>Group Name 1</strong></li> <li><strong>Longer Group Name 2</strong></li> <li><strong>Longer Group Name 3</strong></li> </ul> </div> I want the

问题 I have a jquery functionality where I have two tabs. On click , each tab makes an ajax call and paints a jsp page. Second tab has got a slide toggle. My problem is initially when the page loads I click on the second tab, the slide toggle works fine. When I click on the first tab and click on the second tab the slide toggle will quickly open and close. How to stop this propagation? I tried event .preventDefault() , stopPropagation() , die etc.. no luck. The code I tried is in below. The slide

问题 I encountered a question to which I didn't know the solution for. Suppose I have this HTML markup (dynamically generated by the server or simply a static file): <ul class="myList"> <li><a href="page1.html">Page 1</a></li> <li><a href="page2.html">Page 2</a></li> <li><a href="page3.html">Page 3</a></li> <li><a href="page4.html">Page 4</a></li> <li><a href="page5.html">Page 5</a></li> <li><a href="page6.html">Page 6</a></li> <!-- ... --> <li><a href="page1000.html">Page 1000</a></li> </ul> I