Tests:
  • Object.assign

    AخA
     
    var params = { b:"hello", c: true, d:7 };
    var other = Object.assign({ a: 2 }, params);
  • spread operator

     
    var params = { b:"hello", c: true, d:7 };
    var other = { a: 2, ...params };
Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Experimental features:

  • Test case name Result
    Object.assign
    spread operator

    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
Object.assign 2995577.8 Ops/sec
spread operator 10320246.0 Ops/sec