Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 11_2_3) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.90 Safari/537.36 Edg/89.0.774.63
Chrome 89
Mac OS X 11.2.3
Desktop
3 years ago
Test name Executions per second
Array.isArray 15425083.0 Ops/sec
instanceof 5176894.0 Ops/sec
[].constructor 5294460.0 Ops/sec
Object.prototype.toString 6841646.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString