Tests:
  • Using the spread operator

    AخA
     
    const firstObject = { sampleData: 'Hello world' }
    const secondObject = { moreData: 'foo bar' }
    const finalObject = {
        ...firstObject,
        ...secondObject
    };
  • Using Object.assign

     
    const firstObject = { sampleData: 'Hello world' }
    const secondObject = { moreData: 'foo bar' }
    const finalObject = Object.assign(firstObject, secondObject);
  • Using Object.assign no mutation

     
    const firstObject = { sampleData: 'Hello world' }
    const secondObject = { moreData: 'foo bar' }
    const finalObject = Object.assign({}, firstObject, secondObject);
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Using the spread operator
    Using Object.assign
    Using Object.assign no mutation

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: one year ago)
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36
Chrome 120 on Linux
View result in a separate tab
Test name Executions per second
Using the spread operator 38545340.0 Ops/sec
Using Object.assign 10769090.0 Ops/sec
Using Object.assign no mutation 8661344.0 Ops/sec