Run results for: clone vs cloneNode

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:87.0) Gecko/20100101 Firefox/87.0

Browser: Firefox 87

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
clone	25746.3 Ops/sec
cloneNode	192260.5 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js'></script>
<div></div>
<div class='hoge'>ああああああああああああ</div>
<a id='' href='#' />

Script Preparation code:

var $dw = $("div.hoge");

Tests:

clone
$dw.after( function() { return $(this).clone(); } );
cloneNode
$dw[0].insertAdjacentElement('afterend', $dw[0].cloneNode(true));