Run results for: Object assign vs Object create with properties vs __proto__

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/143.0.0.0 Safari/537.36

Browser: Chrome 143

Operating system: Windows

Device Platform: Desktop

Date tested: 7 months ago

Object.assign

1.3M/s

Object.create with properties

1.1M/s

Object.__proto__

851K/s

View exact numbers

Test name	Executions per second
✓ Object.assign	1,281,107 Ops/sec
Object.create with properties	1,094,225 Ops/sec
Object.__proto__	851,043 Ops/sec

HTML Preparation code:

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Script Preparation code:

/*your preparation JavaScript code goes here
To execute async code during the script preparation, wrap it as function globalMeasureThatScriptPrepareFunction, example:*/
async function globalMeasureThatScriptPrepareFunction() {
    // This function is optional, feel free to remove it.
    // await someThing();
}

Tests:

Object.assign
Object.assign(Object.create({}), { property: "hello" });
Object.create with properties
Object.create({}, { property: { value: "hello" } });
Object.__proto__
({ property: "hello", __proto__: {} });

Run results for: Object assign vs Object create with properties vs proto

Object.assign

Object.create with properties

Object.proto