Run results for: $ Selector performance in JQuery 3

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:68.0) Gecko/20100101 Firefox/68.0

Browser: Firefox 68

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
1	245268.0 Ops/sec
2	289929.7 Ops/sec
3	145001.5 Ops/sec
4	146397.0 Ops/sec
5	212112.8 Ops/sec
6	217427.3 Ops/sec

HTML Preparation code:

<div id="my-id">
    <div class="grand">
        <div class="parent"> Awesome stuff! </div>
        <div class="my-class">
            <p> I like carrots! </p>
        </div>
    </div>
</div>
<script src='https://code.jquery.com/jquery-3.4.1.min.js'></script>

Script Preparation code:

$('.my-class')
jQuery('.my-class')
$('div.my-class')
jQuery('div.my-class')
$('#my-id').find('.my-class')
jQuery('#my-id').find('.my-class')

Tests:

1
$('.my-class')
2
jQuery('.my-class')
3
$('div.my-class')
4
jQuery('div.my-class')
5
$('#my-id').find('.my-class')
6
jQuery('#my-id').find('.my-class')