Benchmark: Performance difference between Object.defineProperty() and Object.defineProperties()

HTML Preparation code:

<!--your preparation HTML code goes here-->

Script Preparation code:

var testProps = {}
for(let i = 1; i < 100; i++){
  if(i%2){
    testProps[`aa${i}`] = {
      value: i,
      writable: true,
      enumerable: false,
      configurable: false
    }
  } else {
    testProps[`aa${i}`] = {
      get(){
        return this[`bb${i}`]
      },
      set(nv){
        this[`bb${i}`] = 2 * nv + 3;
        return true;
      },
      enumerable: false,
      configurable: false
    }
  }
}

Tests:

Object.defineProperty()
const testObj = {}, testProps_ = {...testProps}; for(let a in testProps_){ Object.defineProperty(testObj, a, testProps_[a]); }
Object.defineProperties()
const testObj = {}, testProps_ = {...testProps}; Object.defineProperties(testObj, testProps_)

Historical Performance Data aggregated from 10 community runs

Desktop Results:

Chrome 10 runs

Object.defineProperty()

49K/s

Object.defineProperties()

33K/s

Fastest: Object.defineProperty() (1.5x faster)

View exact numbers

✓ Object.defineProperty(): 49,237 ops/sec
• Object.defineProperties(): 33,027 ops/sec

Results show median performance across all community submissions. Run this benchmark yourself to verify on your device.

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Object.defineProperty()
Object.defineProperties()

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 4 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser/OS: Chrome 144 on Mac OS X 10.15.7

View result in a separate tab

Object.defineProperty()

49K/s

Object.defineProperties()

33K/s

View exact numbers

Test name	Executions per second
✓ Object.defineProperty()	49,317 Ops/sec
Object.defineProperties()	33,174 Ops/sec

Performance difference between Object.defineProperty() and Object.defineProperties() (version: 1)

Comparing performance of: `Object.defineProperty() vs Object.defineProperties()`

Created: one year ago by: Registered User

Go to the latest result

Object.defineProperty()

Object.defineProperties()

Historical Performance Data aggregated from 10 community runs

Desktop Results:

Chrome 10 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Performance difference between Object.defineProperty() and Object.defineProperties() (version: 1)

Comparing performance of: Object.defineProperty() vs Object.defineProperties()

Created: one year ago by: Registered User

Go to the latest result

Object.defineProperty()

Object.defineProperties()

Historical Performance Data aggregated from 10 community runs

Desktop Results:

Chrome 10 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Object.defineProperty() vs Object.defineProperties()`