Run results for: JSON.stringify vs structuredClone

Run details:

User agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:103.0) Gecko/20103.01 Firefox/103.0

Browser: Firefox 103

Operating system: Windows 7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
JSON.stringify	141775.3 Ops/sec
structuredClone	145666.1 Ops/sec

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:

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