Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Chrome 83
Windows
Desktop
4 years ago
Test name Executions per second
map 47.6 Ops/sec
forEach 69.0 Ops/sec
Script Preparation code:
AخA
 
var largeArray = Array(1000000).fill('x');
Tests:
  • map

     
    largeArray.map( (value) => { value+'y' });
  • forEach

     
    largeArray.forEach((value) => { value +'y';});