Run results for: custom element vs div init

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:135.0) Gecko/20100101 Firefox/135.0

Browser: Firefox 135

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: one year ago

div

798/s

class

198/s

View exact numbers

Test name	Executions per second
✓ div	798 Ops/sec
class	198 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()}