Run results for: typeof vs instanceof Function

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:131.0) Gecko/20100101 Firefox/131.0

Browser: Firefox 131

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

typeof

808.5M/s

instanceof

113.4M/s

View exact numbers

Test name	Executions per second
✓ typeof	808,455,168 Ops/sec
instanceof	113,437,992 Ops/sec

Script Preparation code:

var f = () => {};

Tests: