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Run results for: Test of JSON Stringify vs. structuredClone

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Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36
Chrome 113
Windows
Desktop
one year ago
Test name Executions per second
JSON Stringify 269948.0 Ops/sec
Structured Clone 191495.4 Ops/sec
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));

  • Structured Clone

     
    myCopy = structuredClone(myObject);