Run results for: custom element vs div init

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

div

2K/s

class

901/s

View exact numbers

Test name	Executions per second
✓ div	1,530 Ops/sec
class	901 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

class Custom extends HTMLElement {
    constructor() {
        super()
    }
}

customElements.define("custom-me", Custom)

function create() {
    return document.createElement('div')
}

Tests:

div
for(let i = 0; i< 10000; i++){create()}
class
for(let i = 0; i< 10000; i++){new Custom()}