MeasureThat.net

Run results for: Lodash difference vs filtering via set membership

Go to the benchmark
Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36
Chrome 129
Mac OS X 10.15.7
Desktop
7 months ago
Test name Executions per second
Lodash 243.8 Ops/sec
Set & Filter 280.0 Ops/sec
HTML Preparation code:
​x
 
1
​
2
<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 < 100000; i++) {
  arr1.push(i.toString());
}
​
var arr2 = [];
for(let i = 9999; i >= 0; i--) {
  arr2.push(i.toString());
}
Tests:

  • Lodash

     
    const notInArr2 = _.difference(arr1, arr2)

  • Set & Filter

     
    const arr2Set = new Set(arr2);
    ​
    const notInArr2 = arr1.filter(value => !arr2Set.has(value));