Run results for: Jquery v3.7.1 vs v4.0.0

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/135.0.0.0 Safari/537.36 OPR/120.0.0.0 (Edition Yx 05)

Browser: Opera 120

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

v4.0.0

517K/s

v3.7.1

508K/s

View exact numbers

Test name	Executions per second
✓ v4.0.0	517,022 Ops/sec
v3.7.1	507,519 Ops/sec

HTML Preparation code:

<script type="text/javascript" src="//code.jquery.com/jquery-3.7.1.min.js"></script>
<script>
  var $jq371 = $.noConflict(true);
</script>
<script type="text/javascript" src="//code.jquery.com/jquery-4.0.0-beta.min.js"></script>
<script>
  var $jq400 = $.noConflict(true);
</script>
<div>
  <ul id="menu">
    <li class="menu-item">
    </li>
    <li class="menu-item">
    </li>
    <li class="menu-item">
    </li>
    <li class="menu-item">
    </li>
    
  </ul>
</div>

Script Preparation code:

function tests($) {
    $('#menu').css({
      'backgroud': 'red'
    });
    $('.menu-item').eq(2).hasClass('foo');
}

Tests:

v3.7.1
tests($jq371);
v4.0.0
tests($jq400);

Run results for: Jquery v3.7.1 vs v4.0.0

Pre-benchmark for BETA RELEASE v4.0.0

v3.7.1

v4.0.0