events vanilla and jquery

JavaScript performance comparison

Revision 4 of this test case created by Jorge del Casar

Info

vanilla: http://codepen.io/CKGrafico/pen/Avuxl jquery: http://codepen.io/CKGrafico/pen/ALgdl

Preparation code

<style>
.show {
  display: block;
}

.hide {
  display: none;
}
</style>

<nav role="navigation">
  <ul class="nav">
   <li>
        <a href="#">Campaign</a>
        <ul class="hide">
          <li><a href="#">link01</a></li>
          <li><a href="#">link02</a></li>
          <li><a href="#">link03</a></li>
          <li><a href="#">link04</a></li>
        </ul>
      </li>
   <li><a href="">History</a></li>
   <li><a href="">Shop</a></li>
   <li><a href="">Social</a></li>
  </ul>
 </nav><script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Preparation code output

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Testing in unknown unknown
Test Ops/sec
vanilla click
(function(){

        var navs = document.querySelectorAll("nav");
    for(nav in navs){
                navs[nav].addEventListener('click',toggle, true);
        };

        function toggle(e) {
        var target = e.target;
        if(target && target.nodeName == "A") {
            target = target.parentNode;
        }
        if( target && target.nodeName == "LI") {
                console.log(target);
                e.preventDefault();
            debugger
            var sublists = target.querySelectorAll('ul');
            for(sublist in sublists){
                sublists[sublist].classList.toggle('hide')
                sublists[sublist].classList.toggle('show')
                };
            }
    }
})();
pending…
jquery
(function($){
  $('nav ul li').on('click', toggle);
 
  function toggle(e) {
e.preventDefault();
    var $listChild = $(this).find('ul');
    if($listChild.hasClass('hide') || $listChild.hasClass('show')){
      $listChild.toggleClass('hide');
      $listChild.toggleClass('show');
    }
  }

})(jQuery);
pending…

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