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Run results for: Lodash cloneDeep vs structuredClone vs JSON Parse (100 000 objects)

https://developer.mozilla.org/en-US/docs/Web/API/structuredClone

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:134.0) Gecko/20100101 Firefox/134.0
Firefox 134
Windows
Desktop
4 months ago
Test name Executions per second
Lodash cloneDeep 3.4 Ops/sec
Native structuredClone 3.8 Ops/sec
JSON Parse 6.1 Ops/sec
HTML Preparation code:
AخA
 
1
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
Script Preparation code:
​x
 
var MyObject = [];
for (let i=0; i<100000; i++) {MyObject.push({
  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);

  • Native structuredClone

     
    myCopy = structuredClone(MyObject);

  • JSON Parse

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