Run results for: JSON.stringify + JSON.parse vs structuredClone

Run details:

User agent: Mozilla/5.0 (Android 9; Mobile; rv:106.0) Gecko/106.0 Firefox/106.0

Browser: Firefox Mobile 106

Operating system: Android

Device Platform: Mobile

Date tested: 2 years ago

Test name	Executions per second
JSON.stringify + JSON.parse	49803.2 Ops/sec
structuredClone	41784.2 Ops/sec

Script Preparation code:

var obj = {
  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...'
  }
};

Tests:

JSON.stringify + JSON.parse
JSON.parse(JSON.stringify(obj));
structuredClone
structuredClone(obj);