Run results for: Map (Native vs Ramda vs Lodash vs Immutable) - sample size 100

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/67.0.3396.99 Safari/537.36

Browser: Chrome 67

Operating system: Mac OS X 10.13.6

Device Platform: Desktop

Date tested: 6 years ago

Test name	Executions per second
Ramda.map	7615.2 Ops/sec
Array.prototype.map	5594.1 Ops/sec
lodash.map	33249.5 Ops/sec
Immutable.map	411.2 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 type='text/javascript' src='https://cdnjs.cloudflare.com/ajax/libs/immutable/3.8.2/immutable.min.js'></script>

Script Preparation code:

function double(n) {
	return n*2;
}
var data = [...Array(10000)].map((n, idx) => idx);

Tests:

Ramda.map
R.map(double, data);
Array.prototype.map
data.map(double);
lodash.map
_.map(data, double);
Immutable.map
Immutable.fromJS(data).map(double)

Run results for: Map (Native vs Ramda vs Lodash vs Immutable) - sample size 100

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

Ramda.map

Array.prototype.map

lodash.map

Immutable.map