Run results for: lodash vs es6 (intersection)

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:91.0) Gecko/20100101 Firefox/91.0

Browser: Firefox 91

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
lodash	1388696.9 Ops/sec
es6	343102.6 Ops/sec

HTML Preparation code:

<script src="https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)"></script>

Script Preparation code:

var dataset = [...Array(20)].map((v, idx) => idx);
var candidates = [1, 2, 5];

Tests:

lodash
candidates.length === (_.intersection(dataset, candidates)).length
es6
var ds = new Set(dataset); var cs = new Set(candidates); candidates.length === ([...ds].filter(v => cs.has(v))).length;