Script Preparation code:
Tests:
  • Array.isArray

  • instanceof

  • [].constructor

  • Object.prototype.toString

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results
  • Test case name Result
    Array.isArray
    instanceof
    [].constructor
    Object.prototype.toString

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 4 years ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.1 Safari/605.1.15
Safari 14 on Mac OS X 10.15.6
View result in a separate tab
Test name Executions per second
Array.isArray 9441820.0 Ops/sec
instanceof 3791492.2 Ops/sec
[].constructor 3761278.5 Ops/sec
Object.prototype.toString 7718196.5 Ops/sec