event.isImmediatePropagationStopped()

event.isImmediatePropagationStopped()Returns: Boolean

Description: Returns whether event.stopImmediatePropagation() was ever called on this event object.

This property was introduced in DOM level 3.

Example:

Checks whether event.stopImmediatePropagation() was called.

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>event.isImmediatePropagationStopped demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.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" ).click(function( event ) {
  immediatePropStopped( event );
  event.stopImmediatePropagation();
  immediatePropStopped( event );
});
</script>
 
</body>
</html>

Demo:

© The jQuery Foundation and other contributors
Licensed under the MIT License.
https://api.jquery.com/event.isImmediatePropagationStopped