Run results for: Lodash partition VS native reduce

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0

Browser: Firefox 139

Operating system: Ubuntu

Device Platform: Desktop

Date tested: one year ago

Lodash

153K/s

Native reduce

784/s

View exact numbers

Test name	Executions per second
✓ Lodash	152,703 Ops/sec
Native reduce	784 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 arr = [];

for (i = 0; i < 1000; i++) {
  arr[i] = i;
}

Tests:

Lodash
var [met, rest] = _.partition(arr, function(i) { return i % 2 === 0 });
Native reduce
var [met, rest] = arr.reduce(function([p1, p2], i) { return i % 2 === 0 ? [[...p1, i], p2] : [p1, [...p2, i]] }, [[], []])