Run results for: Selector performance in JQuery

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:61.0) Gecko/20100101 Firefox/61.0

Browser: Firefox 61

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
case-1	41090.3 Ops/sec
case-2	40613.1 Ops/sec
case-3	40972.8 Ops/sec
case-4	40263.4 Ops/sec
case-5	40769.8 Ops/sec
case-6	41077.0 Ops/sec
case-7	36707.3 Ops/sec
case-8	38705.2 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://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>

Script Preparation code:

console.log("$(' div#my-id div.grand div.parent div.my-class ')"); //case-1
console.log("$(' #my-id .grand .parent div.my-class ')"); //case-2
console.log("$(' #my-id .grand .parent .my-class ')" ); //case-3
console.log("$(' div#my-id div.my-class ')" ); //case-4
console.log("$(' #my-id div.my-class ')" ); //case-5
console.log("$(' #my-id .my-class ')" ); //case-6
console.log("$(' div.my-class ')" ); //case-7
console.log("$(' .my-class ')" ); //case-8

Tests:

case-1
console.log("$(' div#my-id div.grand div.parent div.my-class ')");
case-2
console.log("$(' #my-id .grand .parent div.my-class ')");
case-3
console.log("$(' #my-id .grand .parent .my-class ')" );
case-4
console.log("$(' div#my-id div.my-class ')" );
case-5
console.log("$(' #my-id div.my-class ')" );
case-6
console.log("$(' #my-id .my-class ')" );
case-7
console.log("$(' div.my-class ')" );
case-8
console.log("$(' .my-class ')" );