Run results for: innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement vs documentFragment

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:136.0) Gecko/20100101 Firefox/136.0

Browser: Firefox 136

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

5) documentFragment

8.8M/s

1) innerHTML +=

8.6M/s

3) appendChild

4.5M/s

4) insertAdjacentElement

3.9M/s

2) insertAdjacentHTML

994K/s

View exact numbers

Test name	Executions per second
✓ 5) documentFragment	8,821,733 Ops/sec
1) innerHTML +=	8,636,794 Ops/sec
3) appendChild	4,466,448 Ops/sec
4) insertAdjacentElement	3,917,640 Ops/sec
2) insertAdjacentHTML	993,988 Ops/sec

Script Preparation code:

 box1 = document.createElement("div");

 box2 = document.createElement("div");
 fragment = document.createDocumentFragment();
 box2HTML = box2.innerHTML;

Tests:

1) innerHTML +=
box1.innerHTML += box2HTML;
2) insertAdjacentHTML
box1.insertAdjacentHTML('beforeend', box2HTML);
3) appendChild
box1.appendChild(box2);
4) insertAdjacentElement
box1.insertAdjacentElement('beforeend', box2);
5) documentFragment
box1.appendChild(fragment);