MeasureThat.net

Run results for: map vs foreach generating array

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:136.0) Gecko/20100101 Firefox/136.0
Firefox 136
Mac OS X 10.15
Desktop
17 days ago
Test name Executions per second
forEach 11177246.0 Ops/sec
map 9339928.0 Ops/sec
Script Preparation code:
AخA
 
var array = new Array(100);
Tests:

  • forEach

    ​x
     
    const result = [];
    ​
    array.forEach(function(i) {
      result.push(i);
    });

  • map

     
    const result = array.map(function(i) {
      return array[i];
    });