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Run results for:
InstanceOf vs String type
Measure the performance of instanceOf operator vs comparing a basic string type.
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 YaBrowser/24.7.0.0 Safari/537.36
Browser:
Yandex Browser 24
Operating system:
Linux
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
instanceof
15758204.0 Ops/sec
string type
40485084.0 Ops/sec
string type + undefined
15220150.0 Ops/sec
property
14514805.0 Ops/sec
HTML Preparation code:
<script> class TestClass { constructor() { this.a = 2; this.t = 'mesh'; } } </script>
Script Preparation code:
var obj = new TestClass();
Tests:
instanceof
obj instanceof TestClass;
string type
obj.t === 'mesh'
string type + undefined
obj.t !== undefined
property
obj.a !== undefined