Run results for: Append children or appendChild in loop

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Append in loop

73K/s

Append

66K/s

View exact numbers

Test name	Executions per second
✓ Append in loop	72,703 Ops/sec
Append	66,083 Ops/sec

HTML Preparation code:

<div id="root"></div>

Script Preparation code:

var root = document.getElementById('root');
var children = [
    document.createElement('span'),
    document.createElement('span'),
    document.createElement('span'),
    document.createElement('span'),
    document.createElement('span'),
];

Tests:

Append
root.append(...children);
Append in loop
for (let i = 0; i < 5; i++) { root.appendChild(children[i]); }