MeasureThat.net

Run results for: Lodash cloneDeep vs JSON.parse(JSON.stringify(obj))

Go to the benchmark
Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/119.0.0.0 Safari/537.36
Chrome 119
Linux
Desktop
one year ago
Test name Executions per second
Lodash cloneDeep 4115.1 Ops/sec
Deep clone with JSON.parse(JSON.stringify(obj)) 5739.2 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>
3
<script src='https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.0/moment.min.js'></script>
Script Preparation code:
 
arr = [];
for (let i = 0; i < 200; i += 1) {
    arr.push({
      name: `Person${i}`,
      birthday: moment().add(i, 'days').toDate(),
    });
  }
Tests:

  • Lodash cloneDeep

     
    const cloneArr = _.cloneDeep(arr);

  • Deep clone with JSON.parse(JSON.stringify(obj))

     
    const cloneArr = JSON.parse(JSON.stringify(arr));