MeasureThat.net

Run results for: lodash cloneDeep vs. JSON.parse(JSON.stringify()) vs. structuredClone

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36 Edg/129.0.0.0
Chrome 129
Windows
Desktop
5 months ago
Test name Executions per second
lodash cloneDeep 989156.6 Ops/sec
JSON.parse(JSON.stringify()) 810585.6 Ops/sec
structuredClone 369258.9 Ops/sec
HTML Preparation code:
​x
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.21/lodash.min.js'></script>
2
<script src='https://cdn.jsdelivr.net/npm/jsondiffpatch@0.4.1/dist/jsondiffpatch.umd.min.js'></script>
3
​
Script Preparation code:
 
var MyObject = {
  description: 'Creates a deep copy of source, which should be an object or an array.',
  myNumber: 123456789,
  myBoolean: true,
  jayson: {
    stringify: 'JSON.stringify() method converts a JavaScript value to a JSON string....',
    parse: 'JSON.parse() method parses a JSON string...'
  }
};
​
var myCopy = null;
​
​
Tests:

  • lodash cloneDeep

     
    myCopy = _.cloneDeep(MyObject);

  • JSON.parse(JSON.stringify())

     
    myCopy = JSON.parse(JSON.stringify(MyObject));

  • structuredClone

     
    myCopy = structuredClone(MyObject);