Run results for: Map (Native vs Ramda vs Lodash)

Run details:

User agent: Mozilla/5.0 (Linux; Android 8.0.0; Build/OPR1.170623.032) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/66.0.3359.158 Mobile Safari/537.36

Browser: Chrome Mobile 66

Operating system: Android 8.0.0

Device Platform: Other

Date tested: 5 years ago

Test name	Executions per second
Ramda	187241.7 Ops/sec
Array (native)	428070.2 Ops/sec
Lodash	263173.5 Ops/sec

HTML Preparation code:

<script src="//cdnjs.cloudflare.com/ajax/libs/ramda/0.25.0/ramda.min.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js"></script>

Script Preparation code:

function double(n) {
	return n*2;
}
function add4(n) {
  return n + 4;
}
var data = [...Array(20)].map((v, idx) => idx);

Tests:

Ramda
R.map(R.compose(double, add4), data);
Array (native)
data.map(double).map(add4);
Lodash
_(data).map(double).map(add4);

Run results for: Map (Native vs Ramda vs Lodash)

measures the speed of ramda's map vs Array's native map vs lodash map

Ramda

Array (native)

Lodash