Run details:
Mozilla/5.0 (X11; Ubuntu; Linux x86_64; rv:83.0) Gecko/20100101 Firefox/83.0
Firefox 83
Ubuntu
Desktop
4 years ago
Test name Executions per second
Native findIndex 30378830.0 Ops/sec
_.findIndex 12170764.0 Ops/sec
HTML Preparation code:
AخA
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
x
 
var users = [
  { 'user': 'joey',  'age': 28 },
  { 'user': 'ross',    'age': 31 },
  { 'user': 'chandler', 'age': 30 },
  { 'user': 'jessika', 'age': 21 },
  { 'user': 'amanda', 'age': 17 }
]
Tests:
  • Native findIndex

     
    users.findIndex(u => u.age === 30)
  • _.findIndex

     
    _.findIndex(users, u => u.age === 30)