Benchmark: JSON.stringify vs structuredClone, large array2

Script Preparation code:

var MyArray = new Array(1e6).fill({
  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(MyArray));
structuredClone
myCopy = structuredClone(MyArray);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
JSON.stringify
structuredClone

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/132.0.0.0 Safari/537.36

Browser/OS: Chrome 132 on Windows

View result in a separate tab

Test name	Executions per second
JSON.stringify	1.5 Ops/sec
structuredClone	16.3 Ops/sec

Related benchmarks:

JSON.stringify vs structuredClone, large array2 (version: 1)

JSON.stringify vs structuredClone

Comparing performance of: JSON.stringify vs structuredClone

Created: one year ago by: Registered User

Jump to the latest result

JSON.stringify

structuredClone

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A