Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:91.0) Gecko/20100101 Firefox/91.0
Firefox 91
Mac OS X 10.15
Desktop
3 years ago
Test name Executions per second
Array.isArray 243616304.0 Ops/sec
instanceof 101421000.0 Ops/sec
[].constructor 297996960.0 Ops/sec
Object.prototype.toString 29380870.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString