MeasureThat.net

Run results for: native find vs for..in

Compare the new ES6 spread operator with the traditional concat() method

Go to the benchmark
Run details:
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
Chrome 131
Mac OS X 10.15.7
Desktop
3 months ago
Test name Executions per second
array find 148646400.0 Ops/sec
_.find 16062472.0 Ops/sec
HTML Preparation code:
AخA
 
1
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.core.js"></script>
Script Preparation code:
​x
 
var users = [
  { 'user': 'joey',  'age': 32 },
  { 'user': 'ross',    'age': 41 },
  { 'user': 'chandler', 'age': 39 }
]
​
​
Tests:

  • array find

     
    // Native
    users.find(function (o) { return o.age < 40; })

  • _.find

     
    ​
    for (let key in users) {
        if (users.hasOwnProperty(key)) {
            let value = users[key];
    ​
            if (users[key].age < 40) return users[key];
        }
    }