Run results for: append(DocumentFragment) vs. append(list of nodes)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36

Browser: Chrome 103

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
append(...array)	1199.7 Ops/sec
append.call(___, array)	4967.8 Ops/sec
append(DocumentFragment)	513646.2 Ops/sec

HTML Preparation code:

<ul id="list"></ul>

Script Preparation code:

list.replaceChildren()

var oneThousandItems = []
var fragment = document.createDocumentFragment()

for (let i = 1; i <= 1000; i++) {
    const li = document.createElement("li")
    li.textContent = i
    oneThousandItems.push(li)
    fragment.append(li.cloneNode(true))
}

Tests:

append(...array)
list.replaceChildren() list.append(...oneThousandItems)
append.call(___, array)
list.replaceChildren() list.append.call(list, oneThousandItems)
append(DocumentFragment)
list.replaceChildren() list.append(fragment)

Run results for: append(DocumentFragment) vs. append(list of nodes)

append(...array)

append.call(___, array)

append(DocumentFragment)