Run results for: Lodash "uniqWith" "unionBy" "uniqBy" 6

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser: Chrome 125

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

uniqBy

6K/s

unionBy

5K/s

uniqWith

1/s

View exact numbers

Test name	Executions per second
✓ uniqBy	6,162 Ops/sec
unionBy	5,469 Ops/sec
uniqWith	1 Ops/sec

HTML Preparation code:

<script src='https://cdn.jsdelivr.net/npm/lodash@4.17.10/lodash.min.js'></script>

Script Preparation code:

var users = [
  { 'name': 'barney',  'age': 36 },
  { 'name': 'pebbles', 'age': 5 }
];

var newUsers = [
  { 'name': 'fred',    'age': 40 },
  { 'name': 'barney',  'age': 36 },
  { 'name': 'pebbles', 'age': 2 }
];

for(let i = 0; i < 2000; i++) {
  var newUser = { 'name': 'user_' + i, 'age': Math.floor(Math.random() * i) };
  newUsers.push(newUser);
}

Tests:

uniqWith
const unionUsers1 = _.uniqWith(newUsers.concat(users), _.isEqual);
unionBy
const unionUsers2 = _.unionBy(newUsers, users, 'name');
uniqBy
const unionUsers1 = _.uniqBy(newUsers.concat(users), 'name');