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Run results for: Object.create(null) vs {} / Nullish coalescing assignment

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/126.0.0.0 Safari/537.36
Chrome 126
Mac OS X 10.15.7
Desktop
10 months ago
Test name Executions per second
Object.create(null); 388.7 Ops/sec
{} 463.0 Ops/sec
Tests:

  • Object.create(null);

    ​x
     
    const obj = Object.create(null);
    ​
    for (i = 0; i < 100_000; i++) {
      obj[i] ??= i;
    }

  • {}

     
    const obj = {};
    ​
    for (i = 0; i < 100_000; i++) {
      obj[i] ??= i;
    }