Benchmark: Object Deep Copy with deep clone 34451232342323

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) {
   let result = Array.isArray(obj) ? [] : {};
    const keys = Object.keys(result);
    const length = keys.length;
    for (let i = length; i > 0; i--) {
        let key = keys[i];
        result[key] = typeof obj[key] === 'object' ? recursiveDeepCopy2(obj[key]) : obj[key];
    }
    return result;
}

function cloneArray(a, cloneObject) {
    const keys = Object.keys(a);
    const a2 = new Array(keys.length);
    for (let i = 0; i < keys.length; i++) {
        const k = keys[i];
        const cur = a[k];
        if (typeof cur !== 'object' || cur === null) {
            a2[k] = cur;
        }
        else {
            a2[k] = cloneObject(cur);
        }
    }
    return a2;
}
function deepClone(o) {
    if (typeof o !== 'object' || o === null) {
        return o;
    }
    if (Array.isArray(o)) {
        return cloneArray(o, deepClone);
    }
    const o2 = {};
    for (const k in o) {
        if (Object.hasOwnProperty.call(o, k) === false) {
            continue;
        }
        const cur = o[k];
        if (typeof cur !== 'object' || cur === null) {
            o2[k] = cur;
        }
        else {
            o2[k] = deepClone(cur);
        }
    }
    return o2;
}
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.

Based on the provided data, I will attempt to answer the question.

It appears that we are dealing with benchmarking results for different JavaScript functions used for deep copying. The functions being compared are:

1. `recursiveDeepCopy`
2. `jsonDeepCopy`
3. `_.cloneDeep` (from Lodash)
4. `deepClone`

The latest benchmark result shows that the function with the fastest execution time is `Recursive Deep Copy 2`, which has an average of 1996242.375 executions per second.

Comparing the execution times, we can see that:

* `recursiveDeepCopy 2` is the fastest
* `jsonDeepCopy` is slower than `Recursive Deep Copy 2`
* `lodash clone` (`.cloneDeep`) is slower than `JSON Deep Copy`
* `deepClone` is slower than `Recursive Deep Copy`

Based on these results, it seems that `recursiveDeepCopy 2` has the fastest execution time. However, without more information about the implementation of these functions and the specific use case being benchmarked, it's difficult to provide a definitive answer.

Would you like me to help with anything else?

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	247812.5 Ops/sec
JSON Deep Copy	28501.1 Ops/sec
lodash clone	16473.6 Ops/sec
deepclone	21006.0 Ops/sec
Recursive Deep Copy 2	1996242.4 Ops/sec

Related benchmarks:

Object Deep Copy with deep clone 34451232342323 (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):