Run results for: innerHTML vs insertAdjacentHTML vs appendChild vs insertAdjacentElement

Run details:

User agent: Mozilla/5.0 (iPhone; CPU iPhone OS 18_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.3 Mobile/15E148 Safari/604.1

Browser: Mobile Safari 18

Operating system: iOS 18.3

Device Platform: Mobile

Date tested: one year ago

1) innerHTML +=

20.5M/s

2) insertAdjacentHTML

19.9M/s

3) appendChild

16.0M/s

4) insertAdjacentElement

13.8M/s

View exact numbers

Script Preparation code:

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

Tests: