Benchmark: Instanceof vs property access

Script Preparation code:

elem  = document.createElement('div');

Tests:

Rendered benchmark preparation results:

Previous results

Test case name	Result
Instanceof
property access

ⓘ Get performance results from real users on your website with Request Metrics.

Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:120.0) Gecko/20100101 Firefox/120.0

Browser/OS: Firefox 120 on Linux

Test name	Executions per second
Instanceof	14132820.0 Ops/sec
property access	1766175000.0 Ops/sec

Instanceof vs property access (version: 0)