MeasureThat.net

Run results for: map vs object test here

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36
Chrome 130
Mac OS X 10.15.7
Desktop
3 months ago
Test name Executions per second
Obj / Object.entries() 1494.6 Ops/sec
Map / spread 233.8 Ops/sec
Map / Array.from() 235.5 Ops/sec
Tests:

  • Obj / Object.entries()

    ​x
     
    let obj = {};
    for (let i = 0; i < 100000; i++) {
      obj[i] = i;
    }
    ​

  • Map / spread

     
    let map = new Map();
    for (let i = 0; i < 100000; i++) {
      map.set(i, i);
    }
    ​

  • Map / Array.from()

     
    let map = new Map();
    for (let i = 0; i < 100000; i++) {
      map.set(i, i);
    }
    ​