Run results for: instanceof vs undefined prop

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:139.0) Gecko/20100101 Firefox/139.0
Firefox 139
Windows
Desktop
11 months ago
Test name Executions per second
instanceof 68608496.0 Ops/sec
checking prop 1412223872.0 Ops/sec
Script Preparation code:
Tests:

  • instanceof

  • checking prop