isImmediatePropagationStopped()

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2023-12-01

描述 (Description)

isImmediatePropagationStopped()方法检查是否曾在此事件对象上调用event.stopImmediatePropagation（）。

如果已经调用了event.stopImmediatePropagation()方法，则此方法返回true，否则返回false -

语法 (Syntax)

以下是使用此方法的简单语法 -

<i>event</i>.isImmediatePropagationStopped()

参数 (Parameters)

以下是此方法使用的所有参数的说明 -

例子 (Example)

以下是一个简单的例子，简单地显示了这种方法的用法 -

<html>
   <head>
      <title>The jQuery Example</title>
      <script type = "text/javascript" 
         src = "https://ajax.googleapis.com/ajax/libs/jquery/2.1.3/jquery.min.js">
      </script>
      <script type = "text/javascript" language = "javascript">
         $(document).ready(function() {
            $("div").click(function(event){
               if ( event.isImmediatePropagationStopped() ){
                  alert( "Event bubbling is disabled - 1" );
               }else{
                  alert( "Event bubbling is enabled - 1" );
               }
               event.stopImmediatePropagation();
               if ( event.isImmediatePropagationStopped() ){
                  alert( "Event bubbling is disabled - 2" );
               }else{
                  alert( "Event bubbling is enabled - 2" );
               }
            });
         });
      </script>
      <style>
         div{ margin:10px;padding:12px; border:2px solid #666; width:160px;}
      </style>
   </head>
   <body>
      <p>Click on any box to see the result:</p>
      <div id = "div1" style = "background-color:blue;">
         BOX 1
      </div>
      <div id = "div2" style = "background-color:red;">
         BOX 2
      </div> 
   </body>
</html>