MeasureThat.net

Run results for: Instanceof vs string comparison vs property checking vs constructor comparison

Measure the performance of instanceOf operator vs comparing a basic string type.

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.102 Safari/537.36 Edg/98.0.1108.55
Chrome 98
Windows
Desktop
2 years ago
Test name Executions per second
instanceof 6349512.5 Ops/sec
string type 14676659.0 Ops/sec
string type + undefined 5268907.0 Ops/sec
property 5138893.0 Ops/sec
constructor comparison 6643534.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:

  • instanceof

  • string type

  • string type + undefined

  • property

  • constructor comparison

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