Benchmark: Object cloning with Lodash clone vs cloneDeep vs merge vs ES6 object spread vs ES6 Object.assign vs Clones

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>
<script src='https://unpkg.com/clone@2.1.2/clone.js'></script>

Script Preparation code:

var o = [
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                "solar": "driving",
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                "five": "question",
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                "strength": "hidden",
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              "may": false,
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              "girl": "good",
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              "along": false,
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              "city": "old",
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          "stairs": "gave",
          "mountain": "pound",
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          "older": false,
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          "cross": "nodded",
          "copy": true,
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          "statement": false,
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          "wet": "wrote",
          "magic": false,
          "shut": "contain",
          "salt": true,
          "there": "space",
          "yourself": "tin"
        },
        "push": "lips",
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        "damage": "rather",
        "consider": true,
        "fly": false,
        "opinion": "scale",
        "till": "accurate",
        "leg": "religious",
        "possibly": false,
        "sharp": "shaking",
        "needed": -783229367.6865501,
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        "church": "balance",
        "stop": "change",
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        "keep": "pay",
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        "key": -546081305,
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        "green": "hair",
        "saved": "his"
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      "universe": "clear",
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      "horse": "melted",
      "deer": false,
      "master": "honor",
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      "few": 761427764.1331215,
      "born": true,
      "such": "agree",
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      "rich": "material",
      "examine": "touch",
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      "fell": "been",
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      "however": "means",
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      "whose": -500068812.078557,
      "speak": false,
      "favorite": "needle"
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    "wind": false,
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    "let": "pine",
    "suddenly": 628485017,
    "usually": "expect",
    "standard": "red",
    "lay": "suggest",
    "end": false,
    "work": true,
    "rapidly": "who",
    "else": "read",
    "duty": false,
    "brief": "make",
    "news": -1927103217,
    "factory": true,
    "chose": -1063028746,
    "indeed": "settle",
    "task": "cover",
    "wing": false,
    "either": false,
    "date": "poetry",
    "treated": true,
    "belt": 300970914,
    "measure": 1752382036,
    "upper": "plane",
    "raise": -786594026.1031046,
    "supply": true
  },
  false,
  "well",
  -361269000,
  1786575437,
  349094587,
  false,
  1761068067,
  -1428989746.4246798,
  "although",
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  "having",
  -1027240257.3023381,
  "farther",
  false,
  556135078,
  false,
  "blue",
  false,
  -116910777.86578465,
  "discuss",
  true,
  "basic",
  "face",
  "changing",
  false,
  "till",
  "declared",
  1091192008.434588,
  -178019274.8340044,
  "history",
  true,
  1368272893.778099
]

Tests:

Lodash cloneDeep
const a = _.cloneDeep(o)
Clone
const a = clone(o)
JSON
const a = JSON.parse(JSON.stringify(o))

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Lodash cloneDeep
Clone
JSON

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 2 years ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/98.0.4758.104 Whale/3.13.131.36 Safari/537.36

Browser/OS: Chrome 98 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
Lodash cloneDeep	14868.9 Ops/sec
Clone	16873.2 Ops/sec
JSON	12839.0 Ops/sec

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

LLMs can make mistakes. Check important info.

Related benchmarks:

Object cloning with Lodash clone vs cloneDeep vs merge vs ES6 object spread vs ES6 Object.assign vs Clones (version: 0)

Comparing performance of: Lodash cloneDeep vs Clone vs JSON

Created: 4 years ago by: Guest

Jump to the latest result

Lodash cloneDeep

Clone

JSON

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):