Tests:
  • Spread

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

     
    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
    Spread
    Object.assign

    Fastest: N/A

    Slowest: N/A

Latest run results:
Run details: (Test run date: 4 years ago)
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36
Chrome 83 on Windows
View result in a separate tab
Test name Executions per second
Spread 18154406.0 Ops/sec
Object.assign 3504240.8 Ops/sec