Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/87.0.4280.88 Safari/537.36
Chrome 87
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
Array.isArray 10994990.0 Ops/sec
instanceof 3599062.0 Ops/sec
[].constructor 3694728.2 Ops/sec
Object.prototype.toString 4762729.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString