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Run results for: ES6 Map - forEach vs for...of while clearing

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/106.0.0.0 Safari/537.36
Chrome 106
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
forEach 14205932.0 Ops/sec
for...of 15749930.0 Ops/sec
Script Preparation code:
AخA
 
var myMap = new Map([[x => x, 'a'], [x => x, 'b'], [x => x, 'c'], [x => x, 'd']]);
Tests:

  • forEach

     
    myMap.forEach((payload, callback) => {
      callback(payload);
      myMap.delete(callback);
    });

  • for...of

     
    for (const [callback, payload] of myMap) {
      callback(payload);
      myMap.delete(callback);
    }