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Run results for: Lodash cloneDeep vs structuredClone vs JSON Parse (uint8array, 5MB)

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) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36
Chrome 108
Windows
Desktop
2 years ago
Test name Executions per second
Lodash cloneDeep 0.3 Ops/sec
Native structuredClone 205.7 Ops/sec
JSON Parse 0.2 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 size = 5000000;
var MyObject = new Uint8Array(size);
​
for (let i = 0; i < size; ++i) {
    MyObject[i] = Math.round(Math.random() * 255);
}
​
var myCopy = null;
Tests:

  • Lodash cloneDeep

     
    myCopy = _.cloneDeep(MyObject);

  • Native structuredClone

     
    myCopy = structuredClone(MyObject);

  • JSON Parse

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