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Run results for:
instanceOf vs __proto__
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Browser:
Chrome 130
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
instanceOf
187977.9 Ops/sec
__proto__
181365.7 Ops/sec
Script Preparation code:
var a = new Map();
Tests:
instanceOf
console.log(a instanceof Map)
__proto__
console.log(a.__proto__ === Map.prototype)