Run results for: instanceof vs number

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser: Firefox 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

number

2025.3M/s

instanceof

309.9M/s

View exact numbers

Test name	Executions per second
✓ number	2,025,309,696 Ops/sec
instanceof	309,863,648 Ops/sec

Script Preparation code:

var obj = {a:2};

Tests: