Benchmark: Looping Frozen object: Object Freeze vs Deep Freeze vs Without Object Freeze vs

HTML Preparation code:

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

Script Preparation code:

const birdSpecies = {
  forest: {
    species: [
      {
        name: "Northern Cardinal",
        physicalCharacteristics: {
          color: "Red",
          size: "Medium",
          beakType: "Conical"
        },
        diet: {
          primary: "Seeds",
          secondary: "Fruits"
        },
        habitat: "Woodlands and forests"
      },
      {
        name: "Woodpecker",
        physicalCharacteristics: {
          color: "Black, White, and Red",
          size: "Medium",
          beakType: "Chisel-shaped"
        },
        diet: {
          primary: "Insects",
          secondary: "Tree sap"
        },
        habitat: "Wooded areas"
      }
    ]
  },
  desert: {
    species: [
      {
        name: "Roadrunner",
        physicalCharacteristics: {
          color: "Brown and White",
          size: "Medium",
          beakType: "Long and Slim"
        },
        diet: {
          primary: "Insects",
          secondary: "Small reptiles"
        },
        habitat: "Desert and arid regions"
      },
      {
        name: "Cactus Wren",
        physicalCharacteristics: {
          color: "Brown with streaks",
          size: "Small",
          beakType: "Curved"
        },
        diet: {
          primary: "Insects",
          secondary: "Seeds"
        },
        habitat: "Cacti and desert shrubs"
      }
    ]
  },
  wetlands: {
    species: [
      {
        name: "Great Blue Heron",
        physicalCharacteristics: {
          color: "Blue-gray",
          size: "Large",
          beakType: "Long and Sharp"
        },
        diet: {
          primary: "Fish",
          secondary: "Amphibians"
        },
        habitat: "Wetlands and marshes"
      },
      {
        name: "American Coot",
        physicalCharacteristics: {
          color: "Dark gray with white bill",
          size: "Medium",
          beakType: "Flat and short"
        },
        diet: {
          primary: "Aquatic plants",
          secondary: "Small invertebrates"
        },
        habitat: "Lakes and wetlands"
      }
    ]
  }
}


const deepFreeze = obj => {
  for (const key in obj) {
    if (obj.hasOwnProperty(key) && typeof obj[key] === "object" && obj[key] !== null) {
      deepFreeze(obj[key])
    }
  }
  return Object.freeze(obj)
}

 
const frozenObject = Object.freeze(structuredClone(birdSpecies))

const copy = structuredClone(birdSpecies)
const deepFrozenObject = deepFreeze(copy)

const nonFrozenObject = structuredClone(birdSpecies)

Tests:

Loop Frozen Object
for (const [habitat, data] of Object.entries(frozenObject)) { console.log(`Habitat: ${habitat}`) for (const bird of data.species) { console.log(` Name: ${bird.name}`) console.log(` Physical Characteristics:`) for (const [key, value] of Object.entries(bird.physicalCharacteristics)) { console.log(` ${key}: ${value}`) } console.log(` Diet:`) for (const [key, value] of Object.entries(bird.diet)) { console.log(` ${key}: ${value}`) } console.log(` Habitat: ${bird.habitat}`) } }
Loop Deep-Frozen Object
for (const [habitat, data] of Object.entries(deepFrozenObject)) { console.log(`Habitat: ${habitat}`) for (const bird of data.species) { console.log(` Name: ${bird.name}`) console.log(` Physical Characteristics:`) for (const [key, value] of Object.entries(bird.physicalCharacteristics)) { console.log(` ${key}: ${value}`) } console.log(` Diet:`) for (const [key, value] of Object.entries(bird.diet)) { console.log(` ${key}: ${value}`) } console.log(` Habitat: ${bird.habitat}`) } }
Loop Non-Frozen Object
for (const [habitat, data] of Object.entries(nonFrozenObject)) { console.log(`Habitat: ${habitat}`) for (const bird of data.species) { console.log(` Name: ${bird.name}`) console.log(` Physical Characteristics:`) for (const [key, value] of Object.entries(bird.physicalCharacteristics)) { console.log(` ${key}: ${value}`) } console.log(` Diet:`) for (const [key, value] of Object.entries(bird.diet)) { console.log(` ${key}: ${value}`) } console.log(` Habitat: ${bird.habitat}`) } }

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

Loop Deep-Frozen Object

2K/s

Loop Non-Frozen Object

1K/s

Loop Frozen Object

1K/s

Fastest: Loop Deep-Frozen Object (1.2x faster)

View exact numbers

✓ Loop Deep-Frozen Object: 1,614 ops/sec
• Loop Non-Frozen Object: 1,491 ops/sec
• Loop Frozen Object: 1,394 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
Loop Frozen Object
Loop Deep-Frozen Object
Loop Non-Frozen Object

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/125.0.0.0 Safari/537.36

Browser/OS: Chrome 125 on Linux

View result in a separate tab

Loop Frozen Object

1K/s

Loop Deep-Frozen Object

1K/s

Loop Non-Frozen Object

1K/s

View exact numbers

Test name	Executions per second
✓ Loop Frozen Object	1,145 Ops/sec
Loop Deep-Frozen Object	1,084 Ops/sec
Loop Non-Frozen Object	1,022 Ops/sec

Looping Frozen object: Object Freeze vs Deep Freeze vs Without Object Freeze vs (version: 1)

Comparing performance of: `Loop Frozen Object vs Loop Deep-Frozen Object vs Loop Non-Frozen Object`

Created: one year ago by: Registered User

Go to the latest result

Loop Frozen Object

Loop Deep-Frozen Object

Loop Non-Frozen Object

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Looping Frozen object: Object Freeze vs Deep Freeze vs Without Object Freeze vs (version: 1)

Comparing performance of: Loop Frozen Object vs Loop Deep-Frozen Object vs Loop Non-Frozen Object

Created: one year ago by: Registered User

Go to the latest result

Loop Frozen Object

Loop Deep-Frozen Object

Loop Non-Frozen Object

Historical Performance Data aggregated from 6 community runs

Desktop Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Loop Frozen Object vs Loop Deep-Frozen Object vs Loop Non-Frozen Object`