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/109.0.0.0 Safari/537.36 Edg/109.0.1518.55
Chrome 109
Windows
Desktop
one year ago
Test name Executions per second
instanceof 13769875.0 Ops/sec
string type 35411160.0 Ops/sec
string type + undefined 6118915.0 Ops/sec
property 5839343.5 Ops/sec
constructor comparison 7071202.0 Ops/sec
HTML Preparation code:
Script Preparation code:
Tests:

  • instanceof

  • string type

  • string type + undefined

  • property

  • constructor comparison

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