MeasureThat.net

Run results for: JSON.parse(JSON.stringify( vs structuredClone( FIXED

Go to the benchmark
Run details:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/115.0.0.0 Safari/537.36
Chrome 115
Windows
Desktop
one year ago
Test name Executions per second
JSON.parse(JSON.stringify( 3.0 Ops/sec
structuredClone( 0.7 Ops/sec
Tests:

  • JSON.parse(JSON.stringify(

    ​x
     
    const myObj1 = {};
    const numLoops = 1000000;
    ​
    for (let i = 0; i < numLoops; i += 1){
      const myObj2 = JSON.parse(JSON.stringify(myObj1));
    }

  • structuredClone(

     
    const myObj1 = {};
    const numLoops = 1000000;
    ​
    for (let i = 0; i < numLoops; i += 1){
      const myObj2 = structuredClone(myObj1);
    }