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

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

array.forEach

39K/s

ramda.forEach

20K/s

for loop

19K/s

lodash.forEach

9K/s

View exact numbers

Test name	Executions per second
✓ array.forEach	39,292 Ops/sec
ramda.forEach	19,860 Ops/sec
for loop	19,474 Ops/sec
lodash.forEach	9,238 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/ramda/0.26.1/ramda.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
let count = 0; _.forEach(values, v => { if (v.x) { count++; } });
array.forEach
let count = 0; values.forEach(v => { if (v.x) { count++; } });
for loop
const numValues = values.length; let count = 0; for (let i = 0; i < numValues; ++i) { if (values[i].x) { count++; } }
ramda.forEach
let count = 0; R.forEach(v => { if (v.x) { count++; } }, values);