Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.1 Safari/605.1.15
Safari 14
Mac OS X 10.15.7
Desktop
3 years ago
Test name Executions per second
Array.isArray 8766536.0 Ops/sec
instanceof 3690641.8 Ops/sec
[].constructor 3636386.0 Ops/sec
Object.prototype.toString 4330644.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString