Run results for: <script src="https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)"></script>

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/131.0.0.0 Safari/537.36

Browser: Chrome 131

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: one year ago

23.5M/s

lodash

2.1M/s

View exact numbers

Test name	Executions per second
✓ ES	23,488,082 Ops/sec
lodash	2,072,279 Ops/sec

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

const intersectionBy = (arr, ...args) => {
  let iteratee = args.pop()
  if (typeof iteratee === 'string') {
    const prop = iteratee
    iteratee = item => item[prop]
  }

  return arr.filter(item1 =>
    args.every(arr2 => arr2.find(item2 => iteratee(item1) === iteratee(item2)))
  )
}

Tests:

lodash
_.intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor)
ES
intersectionBy([2.1, 1.2], [2.3, 3.4], Math.floor)

Run results for: <script src="https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)"></script>

lodash

ES