Benchmark Run Result for: Array loop vs foreach vs map e

Array loop vs foreach vs map e

Date tested: 3 years ago

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.114 Safari/537.36

Test name	Executions per second
foreach	79531.6 Ops/sec
for	4257.6 Ops/sec
map	64930.4 Ops/sec

Benchmark definition (click to collapse):

Script Preparation code:

   var arr = [];
    for (var i = 0; i < 1000; i++) {
      arr[i] = i;
    }
  
    function someFn(i) {
      return i * 3 * 8;
    }
    var arr_len = arr.length

Tests:

foreach
arr.forEach(someFn)
for
for (var i = 0; i < arr_len; i++) { someFn(arr[i]); }
map
arr.map(someFn)

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