Run results for: null vs. hasOwnProperty

Object lookup performance

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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
one year ago
exist hasOwnProperty
481.1M/s
nonexist hasOwnProperty
478.2M/s
nonexist null
474.8M/s
exist null
463.0M/s
View exact numbers
Test name Executions per second
✓ exist hasOwnProperty 481,050,464 Ops/sec
nonexist hasOwnProperty 478,193,760 Ops/sec
nonexist null 474,819,392 Ops/sec
exist null 462,952,544 Ops/sec
Script Preparation code:
Tests: