Run results for: innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 16_4_1 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Mobile/15E148 NAVER(inapp; cafe; 100; 5.17.2)

Browser: Mobile Safari 16

Operating system: iOS 16.4.1

Device Platform: Mobile

Date tested: one year ago

Test name	Executions per second
1) innerHTML +=	5432977.0 Ops/sec
2) insertAdjacentHTML	2597631.0 Ops/sec
3) appendChild	4685689.0 Ops/sec
4) insertAdjacentElement	4239409.0 Ops/sec

Script Preparation code:

 box1 = document.createElement("div");

 box2 = document.createElement("div");
 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);

Run results for: innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement

innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement

1) innerHTML +=

2) insertAdjacentHTML

3) appendChild

4) insertAdjacentElement