Run results for: innerHTML vs append

Run details:

User agent: Mozilla/5.0 (iPad; CPU OS 16_3 like Mac OS X) AppleWebKit/605.1.15 (KHTML, like Gecko) CriOS/109.0.5414.112 Mobile/15E148 Safari/604.1

Browser: Chrome Mobile iOS 109

Operating system: iOS 16.3

Device Platform: Tablet

Date tested: one year ago

Test name	Executions per second
append	1664.4 Ops/sec
innerHTML	1602.4 Ops/sec

HTML Preparation code:

<div id="test"></div>

Tests:

append
var newElement = document.createElement("div"); newElement.id = "testing" for (i = 0; i < 1000; i++) { var newElementPart = document.createElement("div"); newElementPart.classList.add("testClass"); newElement.append(newElementPart); } document.getElementById("test").append(newElement);
innerHTML
html = "<div id='testing'>" for (i = 0; i < 1000; i++) { html += "<div class='testClass'></div>"; } html += "</div>"; document.getElementById("test").innerHTML = html;