Run results for: Lodash difference vs JS filter and includes with big array

Run details:

User agent: Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Ubuntu

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Lodash difference

605/s

JS Filter and includes

3/s

View exact numbers

Test name	Executions per second
✓ Lodash difference	605 Ops/sec
JS Filter and includes	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 makeid(length) {
    var result           = '';
    var characters       = 'abcdefghijklmnopqrstuvwxyz';
    var charactersLength = characters.length;
    for ( var i = 0; i < length; i++ ) {
      result += characters.charAt(Math.floor(Math.random() * 
 charactersLength));
   }
   return result;
}

var array1 = Array.from({length: 10000}, () => makeid(5));
var array2 = Array.from({length: 10000}, () => makeid(5));

Tests:

Lodash difference
filteredArray = _.difference(array1, array2);
JS Filter and includes
filteredArray = array1.filter((arr) => !array2.includes(arr));

Run results for: Lodash difference vs JS filter and includes with big array

Comparing performance of: Lodash difference vs JS Filter and includes with big array

Lodash difference

JS Filter and includes