Run results for: Lodash SortBy Vs Stable Sort

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Browser: Chrome 124

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Lodash sortBy	22.3 Ops/sec
Stable Sort	34.3 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:

function getRandomInt(max) {
  return Math.floor(Math.random() * Math.floor(max));
}

var arr = [];
for(var i = 0; i < 100000; i++){
  arr.push({timestamp:getRandomInt(100), nanos:getRandomInt(100)});
}

Tests:

Lodash sortBy
_.sortBy(arr, ['timestamp', 'nanos'])
Stable Sort
const stableSort = (data) => data .map((item, index) => ({ item, index })) .sort( (a, b) => a.item.timestamp - b.item.timestamp || a.item.nanos - b.item.nanos || a.index - b.index, ) .map(({ item }) => item); stableSort(arr)

Run results for: Lodash SortBy Vs Stable Sort

Lodash sortBy

Stable Sort