Run details:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/71.0.3578.98 Safari/537.36
Chrome 71
Linux
Desktop
5 years ago
Test name Executions per second
Object.assign 1391501.6 Ops/sec
spread operator 2704358.8 Ops/sec
Tests:
  • Object.assign

    AخA
     
    var params = { a: [1,2,3], b: { c: { d: [1,2,3]}}}
    var other = Object.assign({}, params);
  • spread operator

     
    var params = { a: [1,2,3], b: { c: { d: [1,2,3]}}}
    var other = { ...params };