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

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/105.0.0.0 Safari/537.36

Browser: Chrome 105

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
1) innerHTML +=	2810911.8 Ops/sec
2) insertAdjacentHTML	604253.5 Ops/sec
3) appendChild	2267265.8 Ops/sec
4) insertAdjacentElement	2174227.0 Ops/sec
5) documentFragment	3093298.0 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