Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:87.0) Gecko/20100101 Firefox/87.0
Firefox 87
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
Array.isArray 127365144.0 Ops/sec
instanceof 61834092.0 Ops/sec
[].constructor 144101840.0 Ops/sec
Object.prototype.toString 25289854.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString