Run results for: Cópia de obj

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:62.0) Gecko/20100101 Firefox/62.0

Browser: Firefox 62

Operating system: Windows

Device Platform: Desktop

Date tested: 5 years ago

Test name	Executions per second
Spread	3515164.0 Ops/sec
Object.assign()	2460487.0 Ops/sec

Script Preparation code:

var objPai = {
  prop1: 'valor prop1',
  prop2: function () {
    console.log('Sou uma função do objPai')
  },
  prop3: {
    sou: 'Um obj do objPai'
  }
}

Tests:

Spread
var objFilho1 = { ...objPai }
Object.assign()
var objFIlho2 = Object.assign({ }, objPai)

Run results for: Cópia de obj

Cópia de obj

Spread

Object.assign()