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Run results for: For in vs Object.*.forEach vs Object.values vs _.forEach(_.values v3

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Chrome 124
Mac OS X 10.15.7
Desktop
one year ago
Test name Executions per second
For In 36.9 Ops/sec
Object values 37.6 Ops/sec
Object keys forEach 41.8 Ops/sec
Object entries forEach 33.8 Ops/sec
object values forEach 42.4 Ops/sec
_.forEach(_.values()) 36.4 Ops/sec
HTML Preparation code:
​x
 
1
<script src="https://cdn.jsdelivr.net/lodash/4.16.0/lodash.min.js"></script>
2
​
Script Preparation code:
 
var obj = new Object()
var keys = (new Array(10000)).fill(0).map((x, i) => { return i + 1 })
keys.forEach((x) => { obj['prop' + x] = x })
Tests:

  • For In

     
    for (var key in obj) {
      console.log(obj[key]);
    }

  • Object values

     
    for(let value of Object.values(obj)){
        console.log(value);
    }

  • Object keys forEach

     
    Object.keys(obj).forEach(key => console.log(obj[key]));

  • Object entries forEach

     
    Object.entries(obj).forEach(([key, value]) => console.log(key,'->',value));

  • object values forEach

     
    Object.values(obj).forEach(value => console.log(value));

  • _.forEach(_.values())

     
      _.forEach(_.values(obj), value => console.log(value))