Run results for: fafafafaf

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:73.0) Gecko/20100101 Firefox/73.0

Browser: Firefox 73

Operating system: Windows

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
asd	344016.8 Ops/sec
basd	635559.3 Ops/sec

HTML Preparation code:

<div class='x'></div>
<div class='x'></div>
<div class='x'></div>
<div class='x'></div>
<div></div>
<div class='x'></div>
<div></div>
<div class='x'></div>

Script Preparation code:

function getAll(elem, selector) {
  let nodeList;

  if (selector === undefined) {
    selector = elem;
    nodeList = document.querySelectorAll(selector);
  } else {
    nodeList = (elem).querySelectorAll(selector);
  }

  return Array.from(nodeList);
}

Tests:

asd
getAll('div:not(.x)') .forEach(line => line.parentNode.removeChild(line)); getAll('.x') .forEach(line => line.classList.remove('x'));
basd
getAll('div:not(.x)') .forEach(line => { if (line.classList.contains('x')) line.classList.remove('x'); else line.parentNode.removeChild(line); });

asd

basd