handlers.delegateCount--; }//如果specia下有remove,调用if( special.remove ) { special.remove.call( elem, handleObj ); } } }//Remove generic event handler if we removed something and no more handlers exist//(avoids potential for endless recursion during removal of special event handlers)if( o...
这一课我们先来讲一下jQuery.event.remove的源码解读。 remove方法的目的是,根据用户传参,找到事件队列,从里面把匹配的handleObj对象移除,在参数不足的情况下,可能移除多个或所有的handleObj。当队列的长度为0(当某事件的事件处理函数数组为空时,就代表此类型事件没有事件处理函数了,因此移除此事件)时,就移除相应的...
JavaScript的removeEventListener()方法可以用来删除事件处理程序。例如,如果你想删除一个元素的click事件处理程序,可以使用以下代码: 代码语言:javascript 复制 varelement=document.getElementById("element");element.removeEventListener("click",eventHandlerFunction); ...
6. 结束 完成以上步骤后,我们已经成功模拟了jQuery的remove()方法。 代码实现 functionremove(selector){constelement=document.querySelector(selector);if(element){constparent=element.parentNode;if(parent){parent.removeChild(element);}element.removeEventListener(eventType,eventHandler);while(element.firstChild)...
}; // delegate events under the ".validator" namespace $("form").on("click.validator", "button", validate); $("form").on("keypress.validator", "input[type='text']", validate); // remove event handlers in the ".validator" namespace $("form").off(".validator");Ajax...
jQuery源码分析之Event事件分析 对于javascript事件扩展,所有的lib都差不多。和jquery和prototype,yui和Ext,其要解决的首要问题是兼容性,所有 lib都会对event进行包裹,统一其属性解决其兼容性。 对于事件的操作无非是addEvent,fireEvent,removeEvent这三个事 件方法。一般lib都会对浏览器的提供的函数做一些扩展,解决兼容...
.off( events [, selector ] [, handler ] )Returns:jQuery Description:Remove an event handler. version added:1.7.off( events [, selector ] [, handler ] ) events Type:String One or more space-separated event types and optional namespaces, or just namespaces, such as "click", "keydown....
Remove event handlers previously attached using .live() from the elements. Also in:Events>Browser Events|Deprecated>Deprecated 1.8 .error() Bind an event handler to the “error” event, or trigger that event on an element. Also in:Deprecated>Deprecated 1.3|Utilities ...
This hook should return false if it wants jQuery to remove the event from the browser's event system (via removeEventListener or detachEvent). In most cases, the setup and teardown hooks should return the same value. If the setup hook attached event handlers or added data to an element ...
$("元素").remove(); 删除所有的指定元素 $("元素").remove("exp"); 删除所有含有exp的元素 $("元素").wrap("html"); 用html来包围该元素 $("元素").wrap(element); 用element来包围该元素 Traversing: add(expr)当前匹配元素集合增加新的匹配元素集合‘expr',形成新的匹配元素集合; ...