Run results for: Object.assign Spread vs Object.assign.apply 3

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/88.0.4324.150 Safari/537.36 Edg/88.0.705.68

Browser: Chrome 88

Operating system: Windows

Device Platform: Desktop

Date tested: 3 years ago

Test name	Executions per second
Object.assign Spread	5724014.5 Ops/sec
Object.assign.apply	7454871.0 Ops/sec
Spread Function	5218234.0 Ops/sec

HTML Preparation code:

<script>

const batch = [
  { foo: 'foo' },
  { bar: 'bar' },
  { baz: 'baz' }
]

const spread = (target, batch) => {
  for (let i = 0; i < batch.length; i++) {
    Object.assign(target, batch[i])
  }
}

const test1 = () => Object.assign({}, ...batch)
const test2 = () => Object.assign.apply(Object, batch)
const test3 = () => spread({}, batch)

</script>

Tests:

Object.assign Spread
test1()
Object.assign.apply
test2()
Spread Function
test3()

Run results for: Object.assign Spread vs Object.assign.apply 3

Object.assign Spread

Object.assign.apply

Spread Function