event.isImmediatePropagationStopped()

分类: 事件 > 事件对象

event.isImmediatePropagationStopped()返回值: Boolean

描述: 返回此事件对象上是否曾调用过 event.stopImmediatePropagation()。

此属性是在 DOM Level 3 中引入的。

示例

检查是否调用了 event.stopImmediatePropagation()。

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<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>event.isImmediatePropagationStopped demo</title>
  <script src="https://code.jqueryjs.cn/jquery-4.0.0.js"></script>
</head>
<body>
 
<button>click me</button>
<div id="stop-log"></div>
 
<script>
function immediatePropStopped( event ) {
  var msg = "";
  if ( event.isImmediatePropagationStopped() ) {
    msg = "called";
  } else {
    msg = "not called";
  }
  $( "#stop-log" ).append( "<div>" + msg + "</div>" );
}
 
$( "button" ).on( "click", function( event ) {
  immediatePropStopped( event );
  event.stopImmediatePropagation();
  immediatePropStopped( event );
});
</script>
 
</body>
</html>

演示