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: 2 years ago

Callback

3/s

Custom Event

1/s

View exact numbers

Test name	Executions per second
✓ Callback	3 Ops/sec
Custom Event	1 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(); }