Run results for: append vs innerHTML 2

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.2 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 10 days ago

HTML Preparation code:

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

Tests:

innerHTML a
document.getElementById('test').innerHTML = '' let newDiv = '<div id="testing">' for (i = 0; i < 1000; i++) { newDiv += '<div class="testClass">dsfdsffjkdf</div>' } newDiv += '</div>' document.getElementById('test').innerHTML = newDiv
innerHTML b
document.getElementById('test').innerHTML = '' let newDiv = '<div id="testing">' for (i = 0; i < 1000; i++) { newDiv += '<div class="testClass">dsfdsffjkdf</div>' } newDiv += '</div>' document.getElementById('test').innerHTML += newDiv
append
document.getElementById('test').innerHTML = '' const newElement = document.createElement("div"); newElement.id = "testing" for (i = 0; i < 1000; i++) { const newElementPart = document.createElement("div"); newElementPart.id = i newElementPart.classList.add("testClass"); newElementPart.appendChild(document.createTextNode('dsfdsffjkdf')); newElement.appendChild(newElementPart); } document.getElementById("test").append(newElement);