Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_14_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.82 Safari/537.36
Chrome 89
Mac OS X 10.14.6
Desktop
3 years ago
Test name Executions per second
Array.isArray 7135706.5 Ops/sec
instanceof 1312126.9 Ops/sec
[].constructor 2785936.8 Ops/sec
Object.prototype.toString 3639137.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString