Run results for: createElement vs template clone (prefound template)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:137.0) Gecko/20100101 Firefox/137.0

Browser: Firefox 137

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

createElement

1.1M/s

template

638K/s

View exact numbers

Test name	Executions per second
✓ createElement	1,050,644 Ops/sec
template	638,238 Ops/sec

HTML Preparation code:

  <body>
    <template id="option-template">
      <option>Sample Option</option>
    </template>
  </body>

Script Preparation code:

window.template = document.getElementById('option-template');

Tests:

createElement
const option = document.createElement('option'); option.id = `option-${i}`; option.setAttribute('data-foo', 'bar'); option.selected = true; option.textContent = 'aaaa';
template
const clonedOption = template.content.firstElementChild.cloneNode(true); clonedOption.id = `option-${i}`; clonedOption.setAttribute('data-foo', 'bar'); clonedOption.selected = true; clonedOption.textContent = 'aaaa';