Run results for: Custom Event vs Callback with console log large

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.13; rv:109.0) Gecko/20100101 Firefox/115.0

Browser: Firefox 115

Operating system: Mac OS X 10.13

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
Custom Event	0.6 Ops/sec
Callback	3.2 Ops/sec

Tests:

Custom Event
let i = 10001; const results = []; while (--i) { window.dispatchEvent(new CustomEvent('custom:test')); } window.addEventListener('custom:test', () => console.log('hi'))
Callback
function cb() { console.log('hi') } let i = 10001; const results = []; while (--i) { cb(); }