Benchmark: Object Deep Copy

HTML Preparation code:

<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script> <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>

Script Preparation code:

function recursiveDeepCopy(obj) {
  return Object.keys(obj).reduce((v, d) => Object.assign(v, {
    [d]: (obj[d].constructor === Object) ? recursiveDeepCopy(obj[d]) : obj[d]
  }), {});
}

function jsonDeepCopy(o) {
  return JSON.parse(JSON.stringify(o));
}

var dimensions = [{
  "dimensions": [{
    "runtime": {
      "common": {
        "client": null,
        "server": null
      }
    }
  }, {
    "device": {
      "android": null,
      "blackberry": null,
      "iemobile": null,
      "iphone": null,
      "ipad": null,
      "kindle": null,
      "opera-mini": null,
      "palm": null
    }
  }, {
    "environment": {
      "development": {
        "dev": null,
        "test": null
      },
      "production": {
        "stage": null,
        "prod": null
      }
    }
  }, {
    "lang": {
      "ar": {
        "ar-JO": null,
        "ar-MA": null,
        "ar-SA": null,
        "ar-EG": null
      },
      "bn": {
        "bn-IN": null
      },
      "ca": {
        "ca-ES": null
      },
      "cs": {
        "cs-CZ": null
      },
      "da": {
        "da-DK": null
      },
      "de": {
        "de-AT": null,
        "de-DE": null
      },
      "el": {
        "el-GR": null
      },
      "en": {
        "en-AU": null,
        "en-BG": null,
        "en-CA": null,
        "en-GB": null,
        "en-GY": null,
        "en-HK": null,
        "en-IE": null,
        "en-IN": null,
        "en-MY": null,
        "en-NZ": null,
        "en-PH": null,
        "en-SG": null,
        "en-US": null,
        "en-ZA": null
      },
      "es": {
        "es-AR": null,
        "es-BO": null,
        "es-CL": null,
        "es-CO": null,
        "es-EC": null,
        "es-ES": null,
        "es-MX": null,
        "es-PE": null,
        "es-PY": null,
        "es-US": null,
        "es-UY": null,
        "es-VE": null
      },
      "fi": {
        "fi-FI": null
      },
      "fr": {
        "fr-BE": null,
        "fr-CA": null,
        "fr-FR": null,
        "fr-GF": null
      },
      "hi": {
        "hi-IN": null
      },
      "hu": {
        "hu-HU": null
      },
      "id": {
        "id-ID": null
      },
      "it": {
        "it-IT": null
      },
      "ja": {
        "ja-JP": null
      },
      "kn": {
        "kn-IN": null
      },
      "ko": {
        "ko-KR": null
      },
      "ml": {
        "ml-IN": null
      },
      "mr": {
        "mr-IN": null
      },
      "ms": {
        "ms-MY": null
      },
      "nb": {
        "nb-NO": null
      },
      "nl": {
        "nl-BE": null,
        "nl-NL": null,
        "nl-SR": null
      },
      "pl": {
        "pl-PL": null
      },
      "pt": {
        "pt-BR": null
      },
      "ro": {
        "ro-RO": null
      },
      "ru": {
        "ru-RU": null
      },
      "sv": {
        "sv-SE": null
      },
      "ta": {
        "ta-IN": null
      },
      "te": {
        "te-IN": null
      },
      "th": {
        "th-TH": null
      },
      "tr": {
        "tr-TR": null
      },
      "vi": {
        "vi-VN": null
      },
      "zh": {
        "zh-Hans": {
          "zh-Hans-CN": null
        },
        "zh-Hant": {
          "zh-Hant-HK": null,
          "zh-Hant-TW": null
        }
      }
    }
  }]
}]

Tests:

Recursive Deep Copy
var dimensionsCopy = recursiveDeepCopy(dimensions);
JSON Deep Copy
var dimensionsCopy = jsonDeepCopy(dimensions);
lodash clone
var dimensionsCopy = _.cloneDeep(dimensions);

Historical Performance Data aggregated from 64 community runs

Desktop Results:

Chrome 48 runs

Recursive Deep Copy

1.1M/s

JSON Deep Copy

103K/s

lodash clone

45K/s

Fastest: Recursive Deep Copy (23.5x faster)

View exact numbers

✓ Recursive Deep Copy: 1,056,814 ops/sec
• JSON Deep Copy: 102,868 ops/sec
• lodash clone: 45,052 ops/sec

Firefox 10 runs

Recursive Deep Copy

3.2M/s

JSON Deep Copy

103K/s

lodash clone

37K/s

Fastest: Recursive Deep Copy (85.6x faster)

View exact numbers

✓ Recursive Deep Copy: 3,170,932 ops/sec
• JSON Deep Copy: 102,737 ops/sec
• lodash clone: 37,064 ops/sec

Mobile Results:

Chrome 6 runs

Recursive Deep Copy

521K/s

JSON Deep Copy

65K/s

lodash clone

34K/s

Fastest: Recursive Deep Copy (15.3x faster)

View exact numbers

✓ Recursive Deep Copy: 520,546 ops/sec
• JSON Deep Copy: 64,716 ops/sec
• lodash clone: 33,932 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
Recursive Deep Copy
JSON Deep Copy
lodash clone

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 7 months ago)

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.127 Safari/537.36 OPR/60.3.3004.55692

Browser/OS: Opera 60 on Linux

View result in a separate tab

Recursive Deep Copy

78K/s

JSON Deep Copy

4K/s

lodash clone

2K/s

View exact numbers

Test name	Executions per second
✓ Recursive Deep Copy	77,995 Ops/sec
JSON Deep Copy	3,980 Ops/sec
lodash clone	1,691 Ops/sec

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

LLMs can make mistakes. Check important info.

A challenging question!

It appears that you're providing a JSON object that represents benchmarking results, with three test cases (Recursive Deep Copy, JSON Deep Copy, and lodash clone) each with various metrics such as browser information, device platform, operating system, executions per second, and more.

To answer your question, I'll need to identify the actual question being asked. Based on the provided context, it seems that you're asking for:

1. The HTML code used in the benchmarking test cases: `"<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.10/lodash.js"></script> <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script>"`

2. A summary of the individual test case results:

- Recursive Deep Copy: 1,059,039 executions per second
   - JSON Deep Copy: 116,615 executions per second
   - lodash clone: 55,322 executions per second

3. The latest benchmark result (assuming it's the most recent one):

- With a high execution rate of 1,065,039 executions per second

Please confirm if my interpretation is correct!

Object Deep Copy (version: 0)

Produce a deep copy of a Javascript object where nested objects are not simply references to the originals.

Comparing performance of: `Recursive Deep Copy vs JSON Deep Copy vs lodash clone`

Created: 8 years ago by: Guest

Go to the latest result

Recursive Deep Copy

JSON Deep Copy

lodash clone

Historical Performance Data aggregated from 64 community runs

Desktop Results:

Chrome 48 runs

Firefox 10 runs

Mobile Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

Object Deep Copy (version: 0)

Produce a deep copy of a Javascript object where nested objects are not simply references to the originals.

Comparing performance of: Recursive Deep Copy vs JSON Deep Copy vs lodash clone

Created: 8 years ago by: Guest

Go to the latest result

Recursive Deep Copy

JSON Deep Copy

lodash clone

Historical Performance Data aggregated from 64 community runs

Desktop Results:

Chrome 48 runs

Firefox 10 runs

Mobile Results:

Chrome 6 runs

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Autogenerated LLM Summary (model llama3.2:3b, generated one year ago):

Comparing performance of: `Recursive Deep Copy vs JSON Deep Copy vs lodash clone`