Run results for: JSON.parse + JSON.stringify vs structuredClone (cyclical graph)

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0

Browser: Firefox 143

Operating system: Windows

Device Platform: Desktop

Date tested: one year ago

Benchmark engine: Benchmark.js

JSON

702K/s ±2.83%

structuredClone

675K/s ±2.57%

View exact numbers

Test name	Executions per second
✓ JSON	701,729 Ops/sec ±2.83%
structuredClone	675,422 Ops/sec ±2.57%

Script Preparation code:

var obj = {
  cycle: {
  	cycle: {
      cycle: {
          cycle: {
            cycle: {
              cycle: {
                cycle: {
                  cycle: 1
                  }
                }
              }
          	}
		  }
		}
	}
}

Tests:

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