Run results for: lodash difference vs ES6 Set (large set)

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/123.0.0.0 Safari/537.36

Browser: Chrome 123

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
_difference	1505.1 Ops/sec
Set/Filter	1762.5 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 arr1 = [];
for(let i = 0; i < 10000; i++) {
  arr1.push('' + i);
}

var arr2 = [];
for(let i = 499; i >= 0; i--) {
  arr2.push('' + i);
}

Tests:

_difference
const finalArray1 = _.difference(arr1, arr2) const finalArray2 = _.difference(arr2, arr1)
Set/Filter
const outList2 = new Set([...arr2]); const outList1 = new Set([...arr1]); const finalArray1 = arr1.filter(value => !outList2.has(value)); const finalArray2 = arr2.filter(value => !outList1.has(value));