Run results for: Array filter vs Lodash intersection

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:121.0) Gecko/20100101 Firefox/121.0

Browser: Firefox 121

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Benchmark engine: Benchmark.js

Lodash

7K/s

Native

2K/s

View exact numbers

Test name	Executions per second
✓ Lodash	6,870 Ops/sec
Native	1,559 Ops/sec

Script Preparation code:

var arr1 = [];
for (let i = 0; i < 1000; i++) {
  arr1.push(i);
}
arr1 = _.shuffle(arr1);

var arr2 = [];
for (let i = 500; i < 1500; i++) {
  arr2.push(i);
}
arr2 = _.shuffle(arr2);

Tests:

Native
arr1.filter(item => arr2.indexOf(item) > -1);
Lodash
_.intersection(arr1, arr2);