Benchmark: object.assign vs forin

HTML Preparation code:

<script>
  const state1 = {}
  const state2 = {}
  const data = {
    foo: 'foo',
    bar: 'bar',
    baz: 'baz',
    qux: 'qux'
  }
</script>

Tests:

Object.assign
Object.assign(state1, data)
forin
for (const key in data) { state2[key] = data[key] }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.assign
forin

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 3 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/14.0.3 Safari/605.1.15

Browser/OS: Safari 14 on Mac OS X 10.15.6

View result in a separate tab

Test name	Executions per second
Object.assign	1378398.0 Ops/sec
forin	525785.2 Ops/sec

object.assign vs forin (version: 0)

Comparing performance of: Object.assign vs forin

Created: 3 years ago by: Guest

Jump to the latest result

Object.assign

forin

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A