event bubbling vs capturing

In the school, listen to the teacher to explain the event bubbling and event capture mechanism, like listening to the heavenly book, only vaguely remember that IE is using event bubbling, other browsers are event capture. At that

Event capture Phase : Events are looked up from the top level of the label until the event target is captured.Event bubbling Stage : The event starts with the event target and bubbles up to the top level of the page label.The diagram shows the following:1.

Talk about JavaScript events, event bubbling, event capture, and blocking default events These three topics, whether in the interview or in peacetime work, are difficult to avoid.Event Capture phase: an event is searched down from the top level of the tag until the event tar

They are terms that describe event-triggering timing issues. Event capture refers to the node from document to the triggering event, which is the top-down trigger event. On the contrary, event bubbling is the bottom-up trigger

Take the following code as an example:Suppose there's a mouseout event on the Div.In short, event bubbling is when the mouse is mouseout in the area of a, and the event is spread out from layer to layer, triggering the Mouseout event of the Div.The

Event ObjectThe event object represents the state of the incident, such as the element in which the event occurred, the state of the keyboard key, the position of the mouse, and the state of the mouse button.Events are often used in conjunction with functions, and functions are not executed until the event occurs!One,

captureMicrosoft maintains that element 2 has priority. This event order is called the bubble type.The order of the two events is the opposite. Explorer supports only bubble events. Mozilla, Opera7, and Konqueror support both events. The older opera and iCab do not support either. Iii. Captured events When you use a capture event The Code is as follows: --------------- | -----------------| Element1 || ---

The bubbling event and capture event in JS:Bubbling event: The bubbling event is triggered from the inside out, that is, all ancestor elements that reach the page from the beginning of the bound element, are called

There are two very important features in the Javasciprt event: event bubbling and the target element.When an event on an element is triggered, such as a mouse click on a button, the same event will be triggered in all ancestor elements of that element. This process is known

JS so-called event bubbling is a child element of an event is triggered, its ancestor element of the event is also executed recursivelyHtml:1 2 3 4 5 6 7 8 9 Ten Js:1 $ ("ul[data-type= ' Citypick ')"). On (' click ',function2 alert ("Parent element ul is clicked" 34 $ ("ul[data-type

1. Event FlowThe browser development team has a very interesting question: which part of the page will have a specific event?For the understanding of this problem you can imagine a set of concentric circles drawn on a piece of paper, if you put your finger on the center of the circle, then your finger is not actually a circle, but all the circles on the paper. Put on the actual page is that you click on a b

Description: prevents events from bubbling to the DOM tree, that is, the event handler function on any previous element that is not triggered. Version added: 1.0Event. stopPropagation ()We can use event. isPropagationStopped () to determine whether the method (on that event object) has been called. This method is also

Only the students who are concerned with the problem in parentheses can jump directly to the Blue Word section. (the title is a bit big, in fact only one question is discussed)two events bound on the React component, after a conflict, prevent event collisions with e.stoppropagation (), which preventsbubbling, without problems. Today is a hole in the react event, the need can be simplified as follows: Cli

Transferred from: http://www.runoob.com/js/js-htmldom-eventlistener.htmlEvent passing defines the order in which element events are triggered. If you insert the In bubbling , an inner element's event is triggered first, and then an external element is triggered, that is: The In a capture , an event of an external element is first triggered before the

/****************************************** Event Flow **************************************************/The event flow is the order in which the page accepts events.IE uses a time bubbling stream, whereas the Netscape event uses an event capture stream.1.

Before looking at the manual to see the concept of the event object, I want to achieve is to click a text box appears a Lado box, in the text box to lose focus is triggered blur event, so that the dropdown box hidden. But when I want to choose a multiple selection box is also make it hidden, you can not make a choice, which makes me very depressed. After a day of searching the information, finally in the fo

1. Event bubbling mechanism:The event bubbling mechanism is that when an event is bound to an element, if the element does not exist or if the callback function returns ture, the event will bubble up and continue to bind the eleme

bindings for these dynamic elements as well. And then we're going to persist these processing functions and the variables we're going to use for the current context, which doesn't sound like a reliable thing.There may be other ways.Let's start with a full understanding of how events work and how they are delivered in the DOM.How the event worksWhen the user clicks on an element, an event is generated to in

Hello everyone, here is "learn the Web series from scratch" and synchronize updates at the following address ... Github:https://github.com/daotin/web Public number: The top of the Web front Blog Park: http://www.cnblogs.com/lvonve/ csdn:https://blog.csdn.net/lvonve/ Here I will start with the Web front End 0 Foundation, step-up learning web-related knowledge points, during the period will also share some fun projects. Now let's go to the Web Front end learning A

Focus EventOnfocus: Getting focusOnblur: Losing focusEvent bubbling (and style independent, structure)When an element receives an event, it propagates all the events he receives to his parent, always to the top windowBlock bubbling:Called in the event function that currently wants to block bubblingEvent.cancelbubble=true; Current object that blocks the current ev