Benchmark: instanceof vs string

HTML Preparation code:

<script>
class TestClass {
    constructor() {
        this.a = 2;
        this.t = 'TABLE_ROW_HEIGHT_CHANGE';
    }
}
</script>

Script Preparation code:

var obj = new TestClass();

Tests:

instanceof
obj instanceof TestClass;
string type
obj.t === 'mesh'

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
instanceof
string type

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.5060.114 Safari/537.36 OPR/89.0.4447.64 (Edition GX-CN)

Browser/OS: Opera 89 on Windows

View result in a separate tab

Test name	Executions per second
instanceof	5453667.0 Ops/sec
string type	14083800.0 Ops/sec

instanceof vs string (version: 0)

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

Comparing performance of: instanceof vs string type

Created: one year ago by: Guest

Jump to the latest result

instanceof

string type

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A