Run results for: Lodash Intersection with Arrays vs. native with sets vs. native filter with arrays

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/114.0.0.0 Safari/537.36

Browser: Chrome 114

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

Test name	Executions per second
native arrays	7009.0 Ops/sec
lodash intersection	21461.6 Ops/sec
native with sets	10723.6 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);
set1 = new Set(arr1);

Tests:

native arrays
arr1.filter(item => arr2.indexOf(item) > -1);
lodash intersection
_.intersection(arr1, arr2);
native with sets
arr2.filter(item => set1.has(item));

Run results for: Lodash Intersection with Arrays vs. native with sets vs. native filter with arrays

native arrays

lodash intersection

native with sets