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Run results for: JSON.stringify vs structuredClone vs _.cloneDeep

JSON.stringify vs structuredClone vs _.cloneDeep

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Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36
Chrome 124
Linux
Desktop
11 months ago
Test name Executions per second
JSON.stringify 555021.9 Ops/sec
structuredClone 285111.2 Ops/sec
_.cloneDeep 861007.4 Ops/sec
HTML Preparation code:
AخA
 
1
<script src="https://cdn.jsdelivr.net/npm/lodash@4.17.4/lodash.min.js"></script>
Script Preparation code:
​x
 
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:

  • JSON.stringify

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

  • structuredClone

     
    myCopy = structuredClone(MyObject);

  • _.cloneDeep

     
    myCopy = _.cloneDeep(MyObject);