Run results for: sort + indexOf vs intersection

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/70.0.3538.77 Safari/537.36

Browser: Chrome 70

Operating system: Linux

Device Platform: Desktop

Date tested: 4 years ago

Test name	Executions per second
intersection	22141.5 Ops/sec
sort + indexOf	27537.4 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var treeIds = Array.from({length: 100}).map((_, index) => `${index}`);
var selectedIds = _.shuffle(treeIds).slice(0,20);

Tests:

intersection
const intersection = _.intersection(treeIds, selectedIds);
sort + indexOf
selectedIds.sort((i, j) => treeIds.indexOf(i) - treeIds.indexOf(j))