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) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
1) innerHTML +=	5015941.5 Ops/sec
2) insertAdjacentHTML	2140664.5 Ops/sec
3) appendChild	2437496.8 Ops/sec
4) insertAdjacentElement	2204402.5 Ops/sec
5) documentFragment	15946960.0 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);

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

1) innerHTML +=

2) insertAdjacentHTML

3) appendChild

4) insertAdjacentElement

5) documentFragment