Run results for: lodash forEach vs array.forEach vs for loop

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/18.4 Safari/605.1.15

Browser: Safari 18

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

for loop

32K/s

array.forEach

29K/s

lodash.forEach

23K/s

View exact numbers

Test name	Executions per second
✓ for loop	31,835 Ops/sec
array.forEach	29,353 Ops/sec
lodash.forEach	22,998 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var values = [];

for(i = 0; i < 10000; i++) {
    if (Math.random() > 0.5) {
      values.push({ x: true });
    } else { 
      values.push({ x: false });
    }
}

Tests:

lodash.forEach
var count = 0; _.forEach(values, function(v) { if (v.x) { count++; } });
array.forEach
var count = 0; values.forEach(function(v) { if (v.x) { count++; } });
for loop
var count = 0; for (var i = 0; i < values.length; i++) { if (values[i].x) { count++; } }