Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_5) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/86.0.4186.0 Safari/537.36
Chrome 86
Mac OS X 10.15.5
Desktop
4 years ago
Test name Executions per second
lodash merge 2647033.8 Ops/sec
object.assign 5045269.5 Ops/sec
spread 1758505.4 Ops/sec
HTML Preparation code:
x
 
1
2
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Tests:
  • lodash merge

     
    var c = _.merge({ a: 'oh', b: 'my' }, { c: 'goddess' });
  • object.assign

     
    var c = Object.assign({ a: 'oh', b: 'my' }, { c: 'goddess' });
  • spread

     
    var c = { ...{ a: 'oh', b: 'my' }, c: 'goddess' };