Run results for: Clone node vs create element

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_6 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.6 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.6

Device Platform: Mobile

Date tested: one year ago

Clone node

8K/s

Create element

5K/s

View exact numbers

Test name	Executions per second
✓ Clone node	8,309 Ops/sec
Create element	5,188 Ops/sec

Script Preparation code:

function createExample() {
  var el = document.createElement('div');
  el.className = 'class-1 class-2 class-3';
  el.id = 'example';
  el.textContent = 'Test';
  return el;
}

Tests:

Clone node
var clone = createExample(); var i = 1000; while (i--) { clone = clone.cloneNode(true); }
Create element
var el = createExample(); var i = 1000; while (i--) { el = createExample(); }

Run results for: Clone node vs create element

Compare cloning element vs creating a new one

Clone node

Create element