Benchmark Run Result for: Array loop vs foreach vs map (10k)

Array loop vs foreach vs map (10k)

Date tested: 6 years ago

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/69.0.3497.100 Safari/537.36

Test name	Executions per second
foreach	1695.5 Ops/sec
for	1032.5 Ops/sec
map	1700.3 Ops/sec

Benchmark definition (click to collapse):

Script Preparation code:

   var arr = [];
    for (var i = 0; i < 10000; i++) {
      arr[i] = i;
    }
  
    function someFn(i) {
      return i * 3 * 8;
    }

Tests:

foreach
arr.forEach(function (item){ someFn(item); })
for
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
map
arr.map(item => someFn(item))

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