Listing latest benchmark results

Historical Performance Data aggregated from 6 community runs

Desktop Results:
Chrome 6 runs
typeof function
13.2M/s
instanceof
7.6M/s
isFunction
7.4M/s
wrapped typeof function (like optimized _.isFunction)
7.3M/s

Fastest: typeof function (1.8x faster)

View exact numbers
  • ✓ typeof function: 13,205,542 ops/sec
  • • instanceof: 7,603,942 ops/sec
  • • isFunction: 7,395,270 ops/sec
  • • wrapped typeof function (like optimized _.isFunction): 7,264,724 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Browser OS User Agent When Created
Chrome 131 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36 one year ago
Chrome 129 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0 one year ago
Chrome 129 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0 one year ago
Chrome 123 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36 2 years ago
Chrome 120 Windows Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 2 years ago
Chrome 120 Mac OS X 10.15.7 Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36 2 years ago