addeventlistener capture

listens in the capture phase. If you use the same listener object to call addeventlistener () again and set usecapture to false, you will have two separate listeners: one for listening during the capture phase, the other listens in the target and bubble phases. You cannot register an event listener only for the target or bubble phase. These stages appear in pair

Prototype Public override function addeventlistener (type: String, listener: function, usecapture: Boolean = false, priority: Int = 0, useweakreference: Boolean = false): voidFunction Listen for events and process corresponding functions.Parameters 1. Type: String event type. 2. Listener: the function that listens to event post-processing events. This function must accept the event object as its unique parameter and cannot return any results, as shown

for events at all three stages, call two AddEventListener, set Usecapture to True at one time, and set Usecapture to false the second time. (This section is from Baidu).The capture phase is the transfer process from the outside to the inside of the Web page nesting relationship as described in the first part, and the bubbling phase is the transfer process from the target to the outermost layer, and this pa

Target. addEventListener (type, listener, useCapture );Target file node, document, window, or XMLHttpRequest.Type string, event name, excluding "on", such as "click", "mouseover", and "keydown.Listener implements the EventListener interface or JavaSFunctions in callback.UseCapture: whether to use capture. After reading the event stream section, you will understand it. Generally, false is used. When an Event

AddEventListener a total of 3 parameters, as follows:Element.addeventlistener (type,listener,usecapture); Parameters parameter Description Element The object to bind the event to, and the HTML node. Type Event name, notice the "on" in front of the event, such as "onclick" to write "click", "onmouseover" to write "MouseOver". Listener To b

AddEventListener has a total of 3 parameters, as follows: Element.addeventlistener (type,listener,usecapture); Parameters parameter Description Element The object to bind the event to, and the HTML node. Type Event name, notice to remove the "on" in front of the event, such as "onclick" to write "click", "onmouseover" to write "MouseOver". Listener The event listener to bind, note writ

attachevent is the IE add event handler, receive two parameters, where the event type name is added "on",multiple event handlers can be added and triggered in reverse order of addition;AddEventListener is to add an event handler for non-IE, receive three parameters, the first is the event name, do not need to add "on",The second is a bound function, and the third parameter is a Boolean value, which is the way of the event, meaning whether to use the U

method, Firefox and other browsers are not supported, fortunately they all support the standard AddEventListener method //element.addEventListener(type,listener,useCapture);btn1Obj.addEventListener("click",method1,false);btn1Obj.addEventListener("click",method2,false);btn1Obj.addEventListener("click",method3,false); Execution order is method1->method2->method3 Finally contribute a version of the HTML5 workgroup: var addEvent=(f

The third parameter in AddEventListener is Usecapture, a bool type. When False for Bubbling gets (by the inward), true is the capture mode (by the outside).document.getElementById (' Id1 '). AddEventListener (' click ', Function () {console.log (' id1 ');}, False); document.getElementById (' Id2 '). AddEventListener ('

the "on" prefix. For example, use "click" instead of "onclick".tip: All HTML DOM events can be viewed in our full HTML DOM event object reference Manual. function Have to. Specifies the function to execute when the event is triggered.When the event object is passed into the function as the first argument. The type of event object depends on the specific event. For example, the "click" Event belongs to the MouseEvent (mouse event) object. Usecapture Option

Attachevent is the IE add event handler, receive two parameters, where the event type name is added "on",Multiple event handlers can be added and triggered in reverse order of addition;AddEventListener is to add an event handler for non-IE, receive three parameters, the first is the event name, do not need to add "on",The second is a bound function, and the third parameter is a Boolean value, which is the way of the event, meaning whether to use the U

AddEventListener ,RemoveEventListener AddEventListener () accepts three parameters.The first is the event type, such as click,keypress, the idea is not on , and it is all lowercase.The second is the handler function, which has an event parameter, and theevent includes the type, target, andso on.The third is the bool value, not the write is false, False is thebubbling event handler, andTrue is the

The third parameter in AddEventListener is usecapture, a bool type. When False for Bubbling gets (by the inward), true is the capture mode (by the outside). div id="id1" style= "width:200px;height:200px;Position:absolute;top:100px;left:100px;Background-color:blue; Z-index:4 "> div id="Id2" style= "width:200px;height:200px;Position:absolute;top:20px;left:70px;Background-color:green; Z-index

Original source: http://blog.163.com/m13864039250_1/blog/static/21386524820144155526737/ There are three parameters for AddEventListener, and the syntax is: Element.addeventlistener (Type,listener,usecapture) Here's a detailed explanation of which element is the object to bind the function to. Type is the event name, note that "onclick" is changed to "click", "onblur" to "blur", which means that the event name does not have "on". Listener is, of cour

The trigger order of true is always before false; if multiple are true, the trigger of the outer layer prevails over the inner layer; if multiple are false, the trigger of the inner layer prevails over the outer layer. Example If you click the mouse on d3, the event stream is like this: The capture phase checks whether there are Event Handlers whose useCapture is true at p1. If so, it executes the program and then processes p2 in th

There is a write in the document.//the AddEventListener () method is used to add an event handle to the specified element. //tip: Use the RemoveEventListener () method to remove the event handle added by the AddEventListener () method. //Internet Explorer 8 and earlier versions of IE do not support the AddEventListener () method, and Opera 7.0 and opera earlier a

) Child.addeventlistener ("　　Click, function () { console.log ("Child"); }) Result of execution: box Child Event Bubbling Execution Process: Start bubbling up from the most specific element (the element you clicked), take our case above to say its order is: Child->box Event Capture Execution Process: From the least specific element (the outermost box) began to bubble inside, take our case above the order is: Box->child The above comprehens

The addeventlistener () method is used to add an event handle to a specified element. The event handle added by the addeventlistener () method does not overwrite the existing event handle. You can add multiple event handles to an element. You can add multiple event handles of the same type to the same element, for example, two "click" events. You can add event listening to any DOM object, not just HTML elem

.I'm box2.Addeventlistenert method The first parameter fills in the event name, note that there is no need to write on, the second argument can be a function, the third parameter refers to the process of handling event handlers in the bubbling or capturing stages, and if true represents the capture phase processing, If False represents bubbling stage processing, the third parameter can be omitted, and in most cases, the third parameter is not required

. ----- CHROME: Chrome is much clearer: 1. SelectTest1 (or test2, the two are similar) Check the information bit on the right: In ChromeEvent ListenersIt is a good tool to list the listener functions already bound to the selected element. Click the black triangle to view the bound function information: There are two items in "click". The first item is div # test1, which is the information of the onclick function we bound. The document of the second item can be ignored (Chrome's own processing