Run results for: Find object in array

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.77 Safari/537.36

Browser: Chrome 91

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
findIndex	8763432.0 Ops/sec
lodash	2440462.8 Ops/sec
for loop	921594.1 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

var users = [
  { 'user': 'joey',  'age': 28 },
  { 'user': 'ross',    'age': 31 },
  { 'user': 'chandler', 'age': 30 },
  { 'user': 'jessika', 'age': 21 },
  { 'user': 'amanda', 'age': 17 }
]

Tests:

findIndex
users.findIndex(u => u.age === 17)
lodash
_.findIndex(users, u => u.age === 17)
for loop
for (var i = 0; i < users.length; i++) { if (users[i].age === 17) { return i } }

Run results for: Find object in array

findIndex

lodash

for loop