Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:84.0) Gecko/20100101 Firefox/84.0
Firefox 84
Windows
Desktop
3 years ago
Test name Executions per second
Array.isArray 57946968.0 Ops/sec
instanceof 37935360.0 Ops/sec
[].constructor 66097020.0 Ops/sec
Object.prototype.toString 16060759.0 Ops/sec
Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString