MeasureThat.net

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_14_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15
Safari 14
Mac OS X 10.14.6
Desktop
3 years ago
Test name Executions per second
constructor comparison 3726285.8 Ops/sec
instanceof operator 3613410.8 Ops/sec
Array.isArray call 3531319.5 Ops/sec
Script Preparation code:
Tests:

  • constructor comparison

  • instanceof operator

  • Array.isArray call