Run results for: ParentNode.append() vs Node.appendChild() for adding a couple elements

ParentNode.append() is more convenient. Is it also faster when needing to append several elements at once? https://developer.mozilla.org/en-US/docs/Web/API/Element/append https://developer.mozilla.org/en-US/docs/Web/API/Node/appendChild

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/12.1.2 Safari/605.1.15

Browser: Safari 12

Operating system: Mac OS X 10.14.6

Device Platform: Desktop

Date tested: 2 years ago

appendChild()

226K/s

append()

202K/s

append() with apply()

201K/s

appendChild() with loop

198K/s

View exact numbers

Test name	Executions per second
✓ appendChild()	226,164 Ops/sec
append()	201,558 Ops/sec
append() with apply()	201,406 Ops/sec
appendChild() with loop	198,030 Ops/sec

Script Preparation code:

var e1 = document.createElement('div');
var e2 = document.createElement('div');
var e3 = document.createElement('div');
var e4 = document.createElement('div');
var es = [e1, e2, e3, e4];

Tests:

append()
document.body.append(e1, e2, e3, e4);
appendChild()
document.body.appendChild(e1); document.body.appendChild(e2); document.body.appendChild(e3); document.body.appendChild(e4);
append() with apply()
document.body.append.apply(document.body, es);
appendChild() with loop
for (var i = 0; i < es.length; i++) document.body.appendChild(es[i]);