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Run results for: Lodash cloneDeep vs JSON stringify vs structuredClone

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Run details:
Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/103.0.0.0 Safari/537.36
Chrome 103
Mac OS X 10.15.7
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 1367467.1 Ops/sec
Json stringify 1109203.5 Ops/sec
structuredClone 534746.8 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>
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 stringify

     
    myCopy = JSON.stringify(MyObject);

  • structuredClone

     
    mycopy = structuredClone(MyObject)