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How we can prioritize jQuery events?

To prioritize jQuery events, use the event.stopPropagation().

Example

You can try to run the following code to learn how to prioritize using stopPropogation() method:

Live Demo

<!DOCTYPE html>
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<script>
$(document).ready(function(){
   
   var timer;
   function out(s) {
      if (timer) {
        clearTimeout(timer);
        timer = null;
      }
      $("#demo").append(s + "<br>");
      timer = setTimeout(function() {
        $("#demo").append("-------" + "<br>");
        timer = null;
      }, 100);
   }

   $(".li").find('input').click(function(e){
    out('li>input');
    if ($(this).parent().hasClass("stop")) {
        e.stopPropagation();
    }
   });

   $(".li").click(function(e){
    out('li');
   });

   $('input').click(function(e){
    out('input');
    if ($(this).parent().hasClass("stop")) {
        e.stopPropagation();
    }
   });
});
</script>
</head>
<body>

<ul>
<li class="li"><input type="checkbox" /><span>Demo</span></li>
<li class="li stop"><input type="checkbox" /><span>Demo using stop propagation method</span></li>
</ul>
<div id="demo"></div>
</body>
</html>
Updated on 11-Dec-2019 07:25:43

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