Benchmark: Object Deep Copy with deep clone 34

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 recursiveDeepCopy2(obj) {
  return Object.keys(obj).reduce((v, d) => Object.assign(v, {
    [d]:  Object.assign(v, {
                      [d]: obj[d] && obj[d].constructor === Object ? deepClone(obj[d]) : obj[d]
                  })
  }), {});
}

function deepClone(object) {
    let result;
    let i;
    let l;
    if (typeof object !== 'object') {
        return object;
    }
    if (!object) {
        return object;
    }
    if (object.constructor === Array) {
        result = [];
        l = object.length;
        for (i = 0; i < l; i++) {
            result[i] = deepClone(object[i]);
        }
        return result;
    }
    result = {};
    for (i in object) {
        result[i] = deepClone(object[i]);
    }
    return result;
}

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);
deepclone
var dimensionsCopy = deepClone(dimensions);
Recursive Deep Copy 2
var dimensionsCopy = recursiveDeepCopy2(dimensions);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Recursive Deep Copy
JSON Deep Copy
lodash clone
deepclone
Recursive Deep Copy 2

Fastest: N/A

Slowest: N/A

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

LLMs can make mistakes. Check important info.

A technical question!

It seems like we're dealing with benchmarking data for four different deep copying methods: `recursiveDeepCopy`, `jsonDeepCopy`, `_.cloneDeep` (from Lodash), and `deepClone`.

To answer your questions, I'll assume you want to know:

1. Which method is the fastest?
2. How do the results compare across different methods?

Based on the provided data, here are my answers:

**Which method is the fastest?**

According to the latest benchmark result, the `Recursive Deep Copy` (with 270880 executions per second) seems to be the fastest among all four methods.

**How do the results compare across different methods?**

Here's a rough ranking of the methods by their execution speed per second:

1. Recursive Deep Copy: ~270880
2. JSON Deep Copy: ~35308 ( significantly slower than Recursive Deep Copy)
3. Lodash clone: ~20471 (slightly faster than JSON Deep Copy, but still slower than Recursive Deep Copy)
4. deepClone: ~27401 (closer to Recursive Deep Copy, but still slower)

Please note that these results are based on a single benchmarking run and may not reflect the performance differences between these methods in other scenarios or with different input data.

If you'd like me to elaborate on any of these points or provide further insights, feel free to ask!

Latest run results:

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

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_6) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.83 Safari/537.36

Browser/OS: Chrome 85 on Mac OS X 10.15.6

View result in a separate tab

Test name	Executions per second
Recursive Deep Copy	270880.2 Ops/sec
JSON Deep Copy	35308.4 Ops/sec
lodash clone	20471.2 Ops/sec
deepclone	32139.1 Ops/sec
Recursive Deep Copy 2	27401.7 Ops/sec

Related benchmarks:

Object Deep Copy with deep clone 34 (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 vs deepclone vs Recursive Deep Copy 2

Created: 4 years ago by: Guest

Jump to the latest result

Recursive Deep Copy

JSON Deep Copy

lodash clone

deepclone

Recursive Deep Copy 2

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

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