Run results for: insertAdjacentHTML VS append VS appendChild (createDocumentFragment) [MINIMAL]

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) QtWebEngine/5.15.2 Chrome/83.0.4103.122 Safari/537.36 Konqueror (WebEnginePart)

Browser: Chrome 83

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
append	1474.4 Ops/sec
insertAdjacentHTML	291.2 Ops/sec
appendChild (createDocumentFragment)	1008.1 Ops/sec

HTML Preparation code:

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

Tests:

append
let newElement = document.createElement("div"); let DOM = document.body; for (i = 0; i < 1000; i++) { DOM.append(newElement); }
insertAdjacentHTML
let newElement = "<div></div>" let DOM = document.body; for (i = 0; i < 1000; i++) { DOM.insertAdjacentHTML("beforeend", newElement); }
appendChild (createDocumentFragment)
let fragment_VDOM = document.createDocumentFragment(); let newElement = document.createElement("div"); let DOM = document.body; for (i = 0; i < 1000; i++) { fragment_VDOM.appendChild(newElement); DOM.appendChild(fragment_VDOM); }