Script Preparation code:
x
 
var mapForEach = new Map();
var arr = [];
var mapToArr = new Map();
for (let i=0; i<100000; i++) {
  mapForEach.set(i, i);
  arr.push(i);
  mapToArr.set(i, i);
}
Tests:
  • Map.prototype.forEach

     
    mapForEach.forEach(console.log);
  • Array.prototype.forEach

     
    arr.forEach(console.log);
  • Array.from(Map.prototype.values()).forEach

     
    Array.from(mapToArr).forEach(console.log);
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Map.prototype.forEach
    Array.prototype.forEach
    Array.from(Map.prototype.values()).forEach

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120 on Mac OS X 10.15.7
View result in a separate tab
Test name Executions per second
Map.prototype.forEach 3.9 Ops/sec
Array.prototype.forEach 4.4 Ops/sec
Array.from(Map.prototype.values()).forEach 3.7 Ops/sec