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Run results for:
insertAdjacentHTML vs append
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Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=629395" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:109.0) Gecko/20100101 Firefox/115.0
Browser:
Firefox 115
Operating system:
Windows 7
Device Platform:
Desktop
Date tested:
16 days ago
Test name
Executions per second
append
212.3 Ops/sec
insertAdjacentHTML
718.0 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);
insertAdjacentHTML
html = "<div id='testing'>" for (i = 0; i < 1000; i++) { html += "<div class='testClass'></div>"; } html += "</div>"; document.getElementById("test").insertAdjacentHTML("beforeend", html);