Run results for: constructor comparison vs. instanceof vs Array.isArray 2

Compares the performance of comparing a constructor strictly to a function object, using the instanceof operator and calling Array.isArray

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:122.0) Gecko/20100101 Firefox/122.0
Firefox 122
Mac OS X 10.15
Desktop
2 years ago
Test name Executions per second
constructor comparison 940353856.0 Ops/sec
instanceof operator 163600528.0 Ops/sec
Array.isArray call 169044288.0 Ops/sec
Script Preparation code:
Tests:

  • constructor comparison

  • instanceof operator

  • Array.isArray call