Run results for: (instanceof Function) vs (typeof function)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:140.0) Gecko/20100101 Firefox/140.0

Browser: Firefox 140

Operating system: Linux

Device Platform: Desktop

Date tested: one year ago

typeof

1504.3M/s

instanceof

86.3M/s

View exact numbers

Test name	Executions per second
✓ typeof	1,504,292,224 Ops/sec
instanceof	86,303,824 Ops/sec

Script Preparation code:

function fun(x) { return x * 2; }

Tests: