Run results for: Array loop vs foreach vs map vs while vs some vs every vs filter vs find - MeasureThat.net

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:97.0) Gecko/20100101 Firefox/97.0

Browser: Firefox 97

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
foreach	123.1 Ops/sec
for	708.5 Ops/sec
map	52.9 Ops/sec
while	696.5 Ops/sec
some	123910016.0 Ops/sec
every	634135040.0 Ops/sec
filter	65.8 Ops/sec
find	35503528.0 Ops/sec

Script Preparation code:

   var arr = [];
    for (var i = 0; i < 1000000; 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))
while
let i = 0, len = arr.length; while (i<len) { someFn(arr[i]); i++; }
some
arr.some(item => someFn(item))
every
arr.every(item => someFn(item))
filter
arr.filter(item => someFn(item))
find
arr.find(item => someFn(item))

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