Run results for: Map: Native vs Lodash vs Rambda vs Sanctuary

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:79.0) Gecko/20100101 Firefox/79.0

Browser: Firefox 79

Operating system: Mac OS X 10.15

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
Native	4664687.0 Ops/sec
Lodash	4357777.0 Ops/sec
Rambda	5213384.0 Ops/sec
Sanctuary	1588412.0 Ops/sec

HTML Preparation code:

<script src="https://unpkg.com/lodash@4.17.11/lodash.min.js"></script>
<script src="https://unpkg.com/rambdax@2.8.1/dist/rambdax.umd.js"></script>
<script src="https://unpkg.com/sanctuary-show@1.0.0/index.js"></script>
<script src="https://unpkg.com/sanctuary-type-identifiers@2.0.1/index.js"></script>
<script src="https://unpkg.com/sanctuary-type-classes@9.0.0/index.js"></script>
<script src="https://unpkg.com/sanctuary-either@1.0.0/index.js"></script>
<script src="https://unpkg.com/sanctuary-maybe@1.0.0/index.js"></script>
<script src="https://unpkg.com/sanctuary-pair@1.0.0/index.js"></script>
<script src="https://unpkg.com/sanctuary-def@0.18.1/index.js"></script>
<script src="https://unpkg.com/sanctuary@0.15.0/index.js"></script>

Script Preparation code:

function double(n) {
	return n*2;
}

var data = [...Array(20)].map((v, idx) => idx);


const S = sanctuary.create({
  checkTypes: localStorage.getItem ('SANCTUARY_CHECK_TYPES') === 'true',
  env: sanctuary.env,
});
var sanct = S.map(double)

Tests:

Native
data.map(double);
Lodash
_.map(data, double);
Rambda
R.map(double, data);
Sanctuary
sanct(data);